import java.awt.event.MouseListener;
import java.awt.event.MouseEvent;
import java.applet.Applet;
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.GridBagConstraints;
import java.awt.Label;
import java.awt.Font;
import java.awt.Button;

public class Calculator1 extends java.applet.Applet {
                
                int flagPoint = 0;
                String pv0 = "";
                String pv1 = "0";
                String i0 = "";
                String i1 = "0";
                String n0 = "";
                String n1 = "0";
                
                protected Label label1 ;
                protected Button button1 ;
                protected Button button2 ;
                protected Button button3 ;
                protected Button button4 ;
                protected Button button5 ;
                protected Button button6 ;
                protected Button button7 ;
                protected Button button8 ;
                protected Button button9 ;
                protected Button button10 ;
                protected Button button11 ;
                protected Button button12 ;
                protected Button button13 ;
                protected Button button14 ;
                protected Button button15 ;
                protected Button button16 ;
                protected Button button17 ;
                protected Button button18 ;
                protected Label label2 ;
                protected Button button19 ;
                
                // Method# 1
                public Calculator1() {
                        
                        // <DefineAWTMembers>
                        this.setLayout( new java.awt.GridBagLayout() );
                        this.setBackground( new java.awt.Color(192,192,192) );
                        this.setCursor( java.awt.Cursor.getPredefinedCursor(java.awt.Cursor.HAND_CURSOR) );
                        this.setSize( new java.awt.Dimension(400,400) );
                        label1 = new Label();
                        label1.setText( "" );
                        label1.setAlignment( java.awt.Label.CENTER );
                        label1.setForeground( new java.awt.Color(0,255,0) );
                        label1.setBackground( new java.awt.Color(0,0,0) );
                        label1.setFont( new java.awt.Font("Dialog", 0, 16) );
                        button1 = new Button();
                        button1.setLabel( "1" );
                        button1.setForeground( new java.awt.Color(255,255,255) );
                        button1.setBackground( new java.awt.Color(128,128,128) );
                        button2 = new Button();
                        button2.setLabel( "   2   " );
                        button2.setForeground( new java.awt.Color(255,255,255) );
                        button2.setBackground( new java.awt.Color(128,128,128) );
                        button3 = new Button();
                        button3.setLabel( "    3    " );
                        button3.setForeground( new java.awt.Color(255,255,255) );
                        button3.setBackground( new java.awt.Color(128,128,128) );
                        button4 = new Button();
                        button4.setLabel( "4" );
                        button4.setForeground( new java.awt.Color(255,255,255) );
                        button4.setBackground( new java.awt.Color(128,128,128) );
                        button5 = new Button();
                        button5.setLabel( " 5 " );
                        button5.setForeground( new java.awt.Color(255,255,255) );
                        button5.setBackground( new java.awt.Color(128,128,128) );
                        button6 = new Button();
                        button6.setLabel( " 6 " );
                        button6.setForeground( new java.awt.Color(255,255,255) );
                        button6.setBackground( new java.awt.Color(128,128,128) );
                        button7 = new Button();
                        button7.setLabel( "7" );
                        button7.setForeground( new java.awt.Color(255,255,255) );
                        button7.setBackground( new java.awt.Color(128,128,128) );
                        button8 = new Button();
                        button8.setLabel( " 8 " );
                        button8.setForeground( new java.awt.Color(255,255,255) );
                        button8.setBackground( new java.awt.Color(128,128,128) );
                        button9 = new Button();
                        button9.setLabel( " 9 " );
                        button9.setForeground( new java.awt.Color(255,255,255) );
                        button9.setBackground( new java.awt.Color(128,128,128) );
                        button10 = new Button();
                        button10.setLabel( "0" );
                        button10.setForeground( new java.awt.Color(255,255,255) );
                        button10.setBackground( new java.awt.Color(128,128,128) );
                        button11 = new Button();
                        button11.setLabel( " . " );
                        button11.setForeground( new java.awt.Color(255,255,255) );
                        button11.setBackground( new java.awt.Color(128,128,128) );
                        button12 = new Button();
                        button12.setLabel( "   C   " );
                        button12.setForeground( new java.awt.Color(255,0,0) );
                        button12.setBackground( new java.awt.Color(128,128,128) );
                        button13 = new Button();
                        button13.setLabel( "n" );
                        button13.setForeground( new java.awt.Color(255,255,255) );
                        button13.setBackground( new java.awt.Color(128,128,128) );
                        button14 = new Button();
                        button14.setLabel( "i%" );
                        button14.setForeground( new java.awt.Color(255,255,255) );
                        button14.setBackground( new java.awt.Color(128,128,128) );
                        button15 = new Button();
                        button15.setLabel( "pv" );
                        button15.setForeground( new java.awt.Color(255,255,255) );
                        button15.setBackground( new java.awt.Color(128,128,128) );
                        button16 = new Button();
                        button16.setLabel( "comp pmt" );
                        button16.setForeground( new java.awt.Color(255,0,0) );
                        button16.setBackground( new java.awt.Color(128,128,128) );
                        button17 = new Button();
                        button17.setLabel( "clear all" );
                        button17.setForeground( new java.awt.Color(255,0,0) );
                        button17.setBackground( new java.awt.Color(128,128,128) );
                        button18 = new Button();
                        button18.setLabel( "credits" );
                        button18.setForeground( new java.awt.Color(0,0,255) );
                        button18.setBackground( new java.awt.Color(128,128,128) );
                        label2 = new Label();
                        label2.setText( "THE MORTGAGE CALCULATOR" );
                        label2.setAlignment( java.awt.Label.CENTER );
                        label2.setForeground( new java.awt.Color(0,255,255) );
                        label2.setBackground( new java.awt.Color(0,0,0) );
                        label2.setFont( new java.awt.Font("Dialog", 0, 14) );
                        button19 = new Button();
                        button19.setLabel( "  help  " );
                        button19.setForeground( new java.awt.Color(0,255,255) );
                        button19.setBackground( new java.awt.Color(128,128,128) );
                        {
                                GridBagConstraints grid = new GridBagConstraints();
                                grid.fill = GridBagConstraints.HORIZONTAL;
                                grid.gridwidth = 4;
                                grid.gridx = GridBagConstraints.REMAINDER;
                                grid.gridy = GridBagConstraints.REMAINDER;
                                grid.ipady = 35;
                                this.add(label1, grid, -1);
                                grid.gridy = 1;
                                this.add(label2, grid, -1);
                                grid.gridwidth = 1;
                                grid.gridy = 2;
                                grid.ipadx = 35;
                                grid.ipady = 30;
                                this.add(button1, grid, -1);
                                grid.gridx = 1;
                                this.add(button2, grid, -1);
                                grid.gridx = 2;
                                this.add(button3, grid, -1);
                                grid.gridx = GridBagConstraints.REMAINDER;
                                grid.gridy = 3;
                                this.add(button4, grid, -1);
                                grid.gridx = 1;
                                this.add(button5, grid, -1);
                                grid.gridx = 2;
                                this.add(button6, grid, -1);
                                grid.gridx = GridBagConstraints.REMAINDER;
                                grid.gridy = 4;
                                this.add(button7, grid, -1);
                                grid.gridx = 1;
                                this.add(button8, grid, -1);
                                grid.gridx = 2;
                                this.add(button9, grid, -1);
                                grid.gridx = GridBagConstraints.REMAINDER;
                                grid.gridy = 5;
                                this.add(button10, grid, -1);
                                grid.gridx = 1;
                                this.add(button11, grid, -1);
                                grid.gridx = 2;
                                this.add(button12, grid, -1);
                                grid.gridx = GridBagConstraints.REMAINDER;
                                grid.gridy = 6;
                                this.add(button18, grid, -1);
                                grid.gridx = 1;
                                this.add(button19, grid, -1);
                                grid.gridwidth = 2;
                                grid.gridx = 2;
                                grid.ipadx = 70;
                                this.add(button17, grid, -1);
                                grid.gridwidth = 1;
                                grid.gridx = 3;
                                grid.gridy = 2;
                                grid.ipadx = 35;
                                this.add(button15, grid, -1);
                                grid.gridy = 3;
                                this.add(button14, grid, -1);
                                grid.gridy = 4;
                                this.add(button13, grid, -1);
                                grid.gridy = 5;
                                this.add(button16, grid, -1);
                        }
                        //<End of DefineAWTMembers>
                        
                        
                        //<EventListenerClass>
                        class MouseListenerAdapter implements MouseListener {
                                        public void mouseClicked( MouseEvent e ) {
                                                String nada = "";
                                                String point = ".";
                                                String zero1 = "0";
                                                String zero2;
                                                String current1;
                                                float pvdot1;                        // dot=float
                                                Float pvdotF1;
                                                float idot1;
                                                Float idotF1;
                                                float idot2;
                                                float ndot1;
                                                Float ndotF1;
                                                float stat = 0;
                                                int nShalem = 0;
                                                float maanas = 0;
                                                float pmtdot1;
                                                int j;
                                                
                                                if ( e.getSource().equals( button11 ) ) {
                                                        if ( flagPoint == 0 ) { 
                                                                current1 = label1.getText();
                                                                label1.setText(current1+".");
                                                                flagPoint = 1; 
                                                                return; 
                                                        } 
                                                        
                                                        return;
                                                }
                                                if ( e.getSource().equals( button10 ) ) {
                                                        zero2 = label1.getText();
                                                        if ( zero2.equals( zero1 ) ) {
                                                                return;
                                                        } 
                                                        else {
                                                                current1 = label1.getText();
                                                                label1.setText(current1+"0");
                                                                return;
                                                        }
                                                        
                                                }
                                                if ( e.getSource().equals( button9 ) ) {
                                                        
                                                        current1 = label1.getText();
                                                        label1.setText(current1+"9");
                                                        return;
                                                }
                                                if ( e.getSource().equals( button8 ) ) {
                                                        
                                                        current1 = label1.getText();
                                                        label1.setText(current1+"8");
                                                        return;
                                                }
                                                if ( e.getSource().equals( button7 ) ) {
                                                        
                                                        current1 = label1.getText();
                                                        label1.setText(current1+"7");
                                                        return;
                                                }
                                                if ( e.getSource().equals( button6 ) ) {
                                                        
                                                        current1 = label1.getText();
                                                        label1.setText(current1+"6" );
                                                        return;
                                                }
                                                if ( e.getSource().equals( button5 ) ) {
                                                        
                                                        current1 = label1.getText();
                                                        label1.setText(current1+"5");
                                                        return;
                                                }
                                                if ( e.getSource().equals( button4 ) ) {
                                                        
                                                        current1 = label1.getText();
                                                        label1.setText(current1+"4");
                                                        return;
                                                }
                                                if ( e.getSource().equals( button3 ) ) {
                                                        
                                                        current1 = label1.getText();
                                                        label1.setText(current1+"3");
                                                        return;
                                                }
                                                if ( e.getSource().equals( button2 ) ) {
                                                        
                                                        current1 = label1.getText();
                                                        label1.setText(current1+"2");
                                                        return;
                                                }
                                                if ( e.getSource().equals( button1 ) ) {
                                                        current1 = label1.getText();
                                                        label1.setText(current1+"1");
                                                        return;
                                                }
                                                if ( e.getSource().equals( button19 ) ) {
                                                        label2.setText( "INSERT: p.v , i , n   THEN PRESS:comp pmt" );
                                                        return;
                                                }
                                                if ( e.getSource().equals( button18 ) ) {
                                                        label2.setText( "Meny Yotam - The college of Management" );
                                                        return;
                                                }
                                                if ( e.getSource().equals( button17 ) ) {
                                                        label2.setText( "please insert  new data" );
                                                        pv1 = "0";
                                                        i1 = "0";
                                                        n1 = "0";
                                                        label1.setText( "" );
                                                        flagPoint = 0; 
                                                        return;
                                                }
                                                if ( e.getSource().equals( button16 ) ) {
                                                        pvdotF1 = Float.valueOf(pv1);
                                                        idotF1 = Float.valueOf(i1);
                                                        ndotF1 = Float.valueOf(n1);
                                                        
                                                        //  pvdot1=Float.floatValue(pvdotF1);
                                                        //  idot1=Float.floatValue(idotF1);
                                                        //  ndot1=Float.floatValue(ndotF1);
                                                        
                                                        pvdot1 = pvdotF1.floatValue();   //
                                                        idot1 = idotF1.floatValue();     //
                                                        // ndot1=ndotF1.floatValue();     
                                                        nShalem = ndotF1.intValue();
                                                        if ( nShalem == 0 ) {
                                                                label2.setText( "n must be 1 or higher" );
                                                                n1 = "0";
                                                                label1.setText( "" );
                                                                flagPoint = 0; 
                                                                return;
                                                        }
                                                        
                                                        idot2 = (1+idot1/100);
                                                        stat = idot2;
                                                        for (j = 1;j < nShalem;j++) {
                                                                idot2*= stat;
                                                        }
                                                        maanas = (1-(1/idot2))/(idot1/100);
                                                        
                                                        pmtdot1 = pvdot1/maanas;
                                                        
                                                        
                                                        
                                                        label1.setText( "" );
                                                        label2.setText( "pv="+pv1+" i="+i1+"% n="+nShalem+"  pmt is:"+pmtdot1 );
                                                        flagPoint = 0; 
                                                        return;
                                                }
                                                if ( e.getSource().equals( button15 ) ) {
                                                        pv0 = label1.getText();
                                                        if ( pv0.equals( nada ) || pv0.equals( point ) || pv0.equals ( zero1 )) {
                                                                label2.setText( "insert value to p.v." );
                                                                flagPoint = 0;
                                                                label1.setText( "" );
                                                                return;
                                                        }
                                                        else {
                                                                pv1 = label1.getText();
                                                                label2.setText( "pv="+pv1);
                                                                flagPoint = 0; 
                                                                label1.setText( "" );
                                                                return;
                                                        }
                                                }
                                                if ( e.getSource().equals( button14 ) ) {
                                                        i0 = label1.getText();
                                                        if ( i0.equals( nada ) || i0.equals( point ) || i0.equals ( zero1 )) {
                                                                label2.setText( "insert value to i%" );
                                                                flagPoint = 0;
                                                                label1.setText( "" );
                                                                return;
                                                        }
                                                        else {
                                                                i1 = label1.getText();
                                                                label2.setText( "i="+i1);
                                                                label1.setText( "" );
                                                                flagPoint = 0; 
                                                                return;
                                                        }
                                                }
                                                if ( e.getSource().equals( button13 ) ) {
                                                        n0 = label1.getText();
                                                        if ( n0.equals( nada ) || n0.equals( point ) || n0.equals ( zero1 )) { 
                                                                label2.setText( "insert value to n" );
                                                                flagPoint = 0;
                                                                label1.setText( "" );
                                                                return;
                                                        }
                                                        else {
                                                                n1 = label1.getText();
                                                                label2.setText( "n="+n1);
                                                                label1.setText( "" );
                                                                flagPoint = 0; 
                                                                return;
                                                        }
                                                }
                                                if ( e.getSource().equals( button12 ) ) {
                                                        label1.setText( "" );
                                                        flagPoint = 0; 
                                                        return;
                                                }
                                        }
                                        public void mouseExited( MouseEvent e ) {
                                        }
                                        public void mouseEntered( MouseEvent e ) {
                                        }
                                        public void mousePressed( MouseEvent e ) {
                                        }
                                        public void mouseReleased( MouseEvent e ) {
                                        }
                                }
                                
                                
                                button1.addMouseListener(new MouseListenerAdapter());
                                button12.addMouseListener(new MouseListenerAdapter());
                                button2.addMouseListener(new MouseListenerAdapter());
                                button3.addMouseListener(new MouseListenerAdapter());
                                button4.addMouseListener(new MouseListenerAdapter());
                                button5.addMouseListener(new MouseListenerAdapter());
                                button6.addMouseListener(new MouseListenerAdapter());
                                button7.addMouseListener(new MouseListenerAdapter());
                                button8.addMouseListener(new MouseListenerAdapter());
                                button9.addMouseListener(new MouseListenerAdapter());
                                button10.addMouseListener(new MouseListenerAdapter());
                                button11.addMouseListener(new MouseListenerAdapter());
                                button13.addMouseListener(new MouseListenerAdapter());
                                button14.addMouseListener(new MouseListenerAdapter());
                                button15.addMouseListener(new MouseListenerAdapter());
                                button16.addMouseListener(new MouseListenerAdapter());
                                button17.addMouseListener(new MouseListenerAdapter());
                                button18.addMouseListener(new MouseListenerAdapter());
                                button19.addMouseListener(new MouseListenerAdapter());
                                
                        }
                       
                }
                //<EndClassDef>