package kalkulator;

import java.awt.*;
import java.awt.event.*;
import javax.swing.* ;
import javax.swing.JOptionPane ;
import java.io.*;

public class kalkulator extends JFrame
implements ActionListener {

private JButton bOne, bTwo, bThree, bFour, bFive,
bSix, bSeven, bEight, bNine, bZero, bExit,
bMult, bDiv, bSub, bPlus, bEquals, bHelp,
bAbout, bDecPt, bClear ;
private JTextField enterBox ;
private JPanel textPanel, exitPanel, buttonPanel, functionPanel ;
private Container c ;
private Font font;
private String firstNum = new String(""), secondNum = new String(""), tempNum, tempStr ;
private boolean myDiag = false, result = false ,
tempfirstNumSet = false, firstNumSet = false, secondNumSet = false,
pendingOp = false ;
private double aNum, dNum1 = 0.0, dNum2 = 0.0 , answer = 0.0,
tempD = 0.0 , minusOne = -1.0 ;
private double dArray[] = new double[ 10 ] ;
private int opCode = -1, tempInt = 0, tempInt2 = 0,
dArrayPtr = 0, pendingOpCode = -1 ;


public kalkulator() {

super( "Basic Calculator" );
setup() ;

setSize( 350, 300 ); /** ukuran frame */
setLocation( 200, 200 ) ; /** lokasi frame dilayar*/
show(); /** buat agar frame terlihat (visible) */
}

public void setup() {
c = getContentPane() ;
setUpTextField() ;
setUpButtons() ;
setUpFunctionPanel() ;
setUpExitPanel() ;
setUpActionListener() ;
}

public void setUpTextField() {
enterBox = new JTextField( 15 ) ;
enterBox.setText( "" );
firstNumSet = true ;
enterBox.setEditable( false );
enterBox.setBackground( Color.white );
enterBox.setHorizontalAlignment( JTextField.RIGHT );
enterBox.addKeyListener(
new KeyAdapter() {
public void keyPressed ( KeyEvent e ) {
}
}
);
textPanel = new JPanel() ;
textPanel.add(enterBox ) ;

c.add( textPanel , BorderLayout.NORTH ) ;
}

public void setUpButtons() {
buttonPanel = new JPanel() ;
c.add( buttonPanel , BorderLayout.CENTER ) ;

bZero = new JButton( "0" ) ;
bZero.setFont( new Font("Sanserif", Font.BOLD, 16 ) );
bOne = new JButton( "1" ) ;
bTwo = new JButton( "2" ) ;
bThree = new JButton( "3" ) ;
bFour = new JButton( "4" ) ;
bFive = new JButton( "5" ) ;
bSix = new JButton( "6" ) ;
bSeven = new JButton( "7" ) ;
bEight = new JButton( "8" ) ;
bNine = new JButton( "9" ) ;
bExit = new JButton( "Exit" ) ;
bClear = new JButton( "Clear" ) ;
bClear.setBackground( Color.blue ) ;
bClear.setForeground( Color.white );
bMult = new JButton( "*" ) ;
bMult.setFont( new Font("Sanserif", Font.BOLD, 20 ) );
bMult.setBackground( Color.blue ) ;
bMult.setForeground( Color.white );
bDiv = new JButton( "/" ) ;
bDiv.setFont( new Font("Sanserif", Font.BOLD, 20 ) );
bDiv.setBackground( Color.blue ) ;
bDiv.setForeground( Color.white );
bSub = new JButton( "-" ) ;
bSub.setFont( new Font("Sanserif", Font.BOLD, 24 ) );
bSub.setBackground( Color.blue ) ;
bSub.setForeground( Color.white );
bPlus = new JButton( "+" ) ;
bPlus.setBackground( Color.blue ) ;
bPlus.setForeground( Color.white );

bEquals = new JButton( "=" ) ;
bEquals.setFont( new Font("Sanserif", Font.BOLD, 16 ) );
bEquals.setBackground( Color.red ) ;
bEquals.setForeground( Color.white );
bDecPt = new JButton( "." ) ;
bDecPt.setFont( new Font("Sanserif", Font.BOLD, 22 ) );

buttonPanel.add( bSeven ) ;
buttonPanel.add( bEight ) ;
buttonPanel.add( bNine ) ;

buttonPanel.add( bFour ) ;
buttonPanel.add( bFive ) ;
buttonPanel.add( bSix ) ;
buttonPanel.add( bOne ) ;
buttonPanel.add( bTwo ) ;
buttonPanel.add( bThree ) ;

buttonPanel.add( bZero ) ;
buttonPanel.add( bDecPt ) ;
buttonPanel.add( bEquals ) ;

buttonPanel.setLayout( new GridLayout( 5, 3, 5, 5 ) );
}

public void setUpActionListener() {
bDecPt.addActionListener( this );
bZero.addActionListener( this );
bOne.addActionListener( this );
bTwo.addActionListener( this );
bThree.addActionListener( this );
bFour.addActionListener( this );
bFive.addActionListener( this );
bSix.addActionListener( this );
bSeven.addActionListener( this );
bEight.addActionListener( this );
bNine.addActionListener( this );
bExit.addActionListener( this );
bMult.addActionListener( this );
bDiv.addActionListener( this );
bSub.addActionListener( this );
bPlus.addActionListener( this );
bEquals.addActionListener( this );
bClear.addActionListener( this );

bExit.addActionListener( this );
bHelp.addActionListener( this );
bAbout.addActionListener( this );
}

public void setUpFunctionPanel() {

functionPanel = new JPanel() ;
c.add( functionPanel , BorderLayout.EAST ) ;
functionPanel.setLayout( new GridLayout( 6, 1, 5, 3 ) );

functionPanel.add( bMult ) ;
functionPanel.add( bDiv ) ;
functionPanel.add( bSub ) ;
functionPanel.add( bPlus ) ;
functionPanel.add( bClear ) ;
}

public void setUpExitPanel() {
exitPanel = new JPanel() ;
c.add( exitPanel , BorderLayout.SOUTH ) ;
bExit = new JButton( "Exit" ) ;
bExit.setFont( new Font("Sanserif", Font.BOLD, 16 ) );
bExit.setBackground( Color.red ) ;
bExit.setForeground( Color.white );
bHelp = new JButton( "Help" ) ;
bHelp.setFont( new Font("Sanserif", Font.BOLD, 16 ) );
bHelp.setBackground( Color.blue ) ;
bHelp.setForeground( Color.white );
bAbout = new JButton( "About" ) ;
bAbout.setFont( new Font("Sanserif", Font.BOLD, 14 ) );
bAbout.setBackground( Color.darkGray ) ;
bAbout.setForeground( Color.white );

exitPanel.add( bExit ) ;
exitPanel.add( bHelp ) ;
exitPanel.add( bAbout ) ;

}

public void actionPerformed( ActionEvent e ) {

tempNum = "" + answer ;

if ( e.getSource() == bPlus || e.getSource() == bSub ||
e.getSource() == bMult || e.getSource() == bDiv ) {
tempNum = "" + answer ;

MyPrint( "actionPerformed() 1a: The value of result is " + result +
" The value of tempNum is " + enterBox.getText() +
" The value of opCode is " + opCode ) ;
}

if ( result ) {
/** If result =s true, set the text field to blank */
MyPrint( "actionPerformed() 1b: The value of result is " + result +
"The value of tempNum is " + enterBox.getText()
);
result = false ;
enterBox.setText( "" );
}

if ( !pendingOp && opCode == 99 ) {
MyPrint( "actionPerformed() 1c: The value of opCode is " + opCode +
" The value of firstNum is " + firstNum +
" The value of tempNum is " + tempNum );
pendingOpCode = -1 ;
firstNumSet = true ;
firstNum = tempNum ;
enterBox.setText( "" );
}

if ( e.getSource() == bDecPt ) {
MyPrint( "The decimal point button was pressed." );
enterBox.setText( enterBox.getText() + "." ) ;
}
else if ( e.getSource() == bZero ) {
MyPrint( "The zero button was pressed. And pendingOp is " + pendingOp );
enterBox.setText( enterBox.getText() + "0" ) ;
}
else if ( e.getSource() == bOne ) {
MyPrint( "The one button was pressed. And pendingOp is " + pendingOp );
enterBox.setText( enterBox.getText() + "1" ) ;
}
else if ( e.getSource() == bTwo ) {
MyPrint( "The two button was pressed. And pendingOp is " + pendingOp );
enterBox.setText( enterBox.getText() + "2" ) ;
}
else if ( e.getSource() == bThree ) {
MyPrint( "The Three button was pressed. And pendingOp is " + pendingOp);
enterBox.setText( enterBox.getText() + "3" ) ;
}
else if ( e.getSource() == bFour ) {
MyPrint( "The Four button was pressed. And pendingOp is " + pendingOp );
enterBox.setText( enterBox.getText() + "4" ) ;
}
else if ( e.getSource() == bFive ) {
MyPrint( "The Five button was pressed. And pendingOp is " + pendingOp );
enterBox.setText( enterBox.getText() + "5" ) ;
}
else if ( e.getSource() == bSix ) {
MyPrint( "The Six button was pressed. And pendingOp is " + pendingOp );
enterBox.setText( enterBox.getText() + "6" ) ;
}
else if ( e.getSource() == bSeven ) {
MyPrint( "The Seven button was pressed. And pendingOp is " + pendingOp );
enterBox.setText( enterBox.getText() + "7" ) ;
}
else if ( e.getSource() == bEight ) {
MyPrint( "The Eight button was pressed. And pendingOp is " + pendingOp );
enterBox.setText( enterBox.getText() + "8" ) ;
}
else if ( e.getSource() == bNine ) {
MyPrint( "The Nine button was pressed. And pendingOp is " + pendingOp );
enterBox.setText( enterBox.getText() + "9" ) ;
}
else if ( e.getSource() == bExit ) {
MyPrint( "The Exit button was pressed." );
sysExit() ;
}
else if ( e.getSource() == bMult ) {
MyPrint( "The Mult button was pressed. And pendingOp is " + pendingOp );
multOp() ;
}
else if ( e.getSource() == bDiv ) {
MyPrint( "The Div button was pressed. And pendingOp is " + pendingOp );
divOp() ;
}
else if ( e.getSource() == bSub ) {
MyPrint( "The Sub button was pressed. And pendingOp is " + pendingOp );
subOp() ;
}
else if ( e.getSource() == bPlus ) {
MyPrint( "The Plus button was pressed. And pendingOp is " + pendingOp );
plusOp() ;
}
else if ( e.getSource() == bClear ) {
MyPrint( "The bClear button was pressed." );
enterBox.setText( "" ) ;
firstNum = "" ;
firstNumSet = true ;
secondNum = "" ;
answer = 0.0 ;
dNum1 = 0.0 ;
dNum2 = 0.0 ;
opCode = -1 ;
pendingOpCode = -1 ;
pendingOp = false ;
}
else if ( e.getSource() == bEquals ) {
MyPrint( "bEquals 1: The Equals button was pressed. And pendingOp is " + pendingOp +
" The opCode value is " + opCode );
if ( pendingOpCode >= 0 || pendingOpCode <= 3 ) { MyPrint( "bEquals 2: In pendingOpCode =s " + pendingOpCode ) ; pendingOp = true ; opCodeMethod() ; } } else if ( e.getSource() == bHelp ) { MyPrint( "The Help button was pressed." ); File hd = new File("Kalkulator_help_doc.html"); String helpStr = hd.getAbsolutePath() ; Runtime rt = Runtime.getRuntime(); String[] callAndArgs = { "c:\\Program Files\\Internet Explorer\\IExplore.exe" , "" + helpStr }; try { Process child = rt.exec( callAndArgs ); child.waitFor(); MyPrint ("Process exit code is: " + child.exitValue()); } catch(IOException e2) { MyPrint ( "IOException starting process!"); } catch(InterruptedException e3) { System.err.println( "Interrupted waiting for process!"); } } else if ( e.getSource() == bAbout ) { MyPrint( "The About button was pressed." ); Runtime rt = Runtime.getRuntime(); String[] callAndArgs = { "c:\\Program Files\\Internet Explorer\\IExplore.exe" , "ALAMaT" }; try { Process child = rt.exec(callAndArgs); child.waitFor(); MyPrint ("Process exit code is: " + child.exitValue()); } catch(IOException e2) { MyPrint( "IOException starting process!"); } catch(InterruptedException e3) { MyPrint( "Interrupted waiting for process!"); } } } private void multOp() {
// TODO Auto-generated method stub

}

public void setResults() { MyPrint( "setResults() 1: answer is " + answer + " dNum1 is " + dNum1 ); enterBox.setText( "" + answer ); firstNum = "" + answer ; dNum1 = answer; firstNumSet = true ; result = true ; pendingOp = false ; } public void opCodeMethod() { int currentOpCode = -1 , tempOpCode = opCode ; boolean temppendingOp = pendingOp ; MyPrint( "opCodeMethod() 1: with an opCode of " + opCode ); if ( pendingOp ) { MyPrint( "opCodeMethod() 2: with an opCode of " + opCode + " and a pendingOpCode =s " + pendingOpCode ); currentOpCode = pendingOpCode ; pendingOp = false ; } else { currentOpCode = opCode ; MyPrint( "opCodeMethod() 2b: with an opCode of " + opCode ) ; } switch ( currentOpCode ) { case 0 : multOp() ; break ; case 1 : divOp() ; break ; case 2 : MyPrint( "opCodeMethod() 3: opCode =s " + currentOpCode ) ; subOp() ; break ; case 3 : MyPrint( "opCodeMethod() 4: opCode =s " + currentOpCode ) ; plusOp() ; break ; case 5 : //powerOp() ; break ; default : MyPrint( "opCodeMethod() 7: default case is " + currentOpCode ); setResults() ; firstNumSet = true ; secondNum = "0.0" ; dNum2 = 0.0 ; pendingOp = false ; opCode = 99 ; MyPrint( "opCodeMethod() 8: Case default: firstNum =s " + firstNum); break ; } MyPrint( "opCodeMethod() 9: pendingOpCode =s " + pendingOpCode + " pendingOp " + pendingOp ); pendingOpCode = tempOpCode ; pendingOp = temppendingOp ; if ( !( opCode == 99 ) ) opCode = -1 ; } public void multOp() { opCode = 0 ; MyPrint( "multOp() 1a: The opcode value is " + opCode + " The value of firstNum is " + firstNum + " The value of answer is " + answer ) ; if ( pendingOpCode == 0 ) { secondNum = enterBox.getText() ; if ( secondNum.equals( "" ) ) { secondNum = "0.0" ; } convertNumsToDouble() ; answer = dNum1 * dNum2 ; pendingOp = false ; setResults() ; MyPrint( "multOp() 2: opCode is " + opCode + " The value of answer is " + answer ); secondNum = "0.0" ; opCode = -1 ; } else if ( pendingOpCode >= 1 ) {
MyPrint( "multOp() 2a: In pendingOpCode =s " + pendingOpCode ) ;
pendingOp = true ;
opCodeMethod() ;
}
if ( opCode == 0 ) {
MyPrint( "multOp() 3: In pendingOp code. The opcode value is " + opCode ) ;
firstNum = enterBox.getText() ;
if ( secondNum.equals( "" ) ) {
secondNum = "0.0" ;
}
opCode = 0 ;
pendingOp = false ;
pendingOpCode = 0 ;
MyPrint( "multOp() 5: opCode is " + opCode + " The value of answer is " + answer );
opCode = -1 ;
result = true ;
MyPrint( "multOp() 4: pendingOpCode is " + pendingOpCode + " The value of answer is " + answer );
}
}

public void divOp() {
MyPrint( "divOp() 1a: opCode is " + opCode + " firstNumSet =s " + firstNumSet +
" pendingOpCode =s " + pendingOpCode );
opCode = 1 ;

MyPrint( "divOp() 1b: The opcode value is " + opCode +
" The value of firstNum is " + firstNum +
" The value of answer is " + answer ) ;

if ( pendingOpCode == 1 ) {
secondNum = enterBox.getText() ;
if ( secondNum.equals( "" ) ) {
secondNum = "0.0" ;
}
convertNumsToDouble() ;
if ( dNum1 == 0.0 ) {
answer = dNum1 ;
}
else if ( dNum2 == 0.0 ) {
answer = dNum1 ;
setResults() ;
JOptionPane.showMessageDialog( this, "The number " +
dNum2 + " cannot be used as a denometer.\n" +
"You cannot divide by zero.",
"Attempted to Divide by Zero",
JOptionPane.ERROR_MESSAGE );
}
else {
answer = dNum1 / dNum2 ;
}
pendingOp = false ;
setResults() ;
MyPrint( "divOp() 2: opCode is " + opCode + " The value of answer is " + answer );
secondNum = "0.0" ;
opCode = -1 ;
}
else if ( pendingOpCode == 0 || pendingOpCode == 2 || pendingOpCode == 3 ) {
MyPrint( "divOp() 2a: In pendingOpCode =s " + pendingOpCode ) ;
pendingOp = true ;
opCodeMethod() ;
}
else if ( opCode == 1 ) {
MyPrint( "divOp() 3: In pendingOp code. The opcode value is " + opCode ) ;
firstNum = enterBox.getText() ;
if ( secondNum.equals( "" ) ) {
secondNum = "0.0" ;
}
opCode = 1 ;
pendingOp = false ;
pendingOpCode = 1 ;
opCode = -1 ;
result = true ;
MyPrint( "divOp() 4: pendingOpCode is " + pendingOpCode +
" The value of answer is " + answer );
}
}

public void subOp() {
opCode = 2 ;

MyPrint( "subOp() 1a: The opcode value is " + opCode +
" The value of firstNum is " + firstNum +
" The value of answer is " + answer +
" pendingOpCode =s " + pendingOpCode ) ;

if ( pendingOpCode == 2 ) {
secondNum = enterBox.getText() ;
if ( secondNum.equals( "" ) ) {
secondNum = "0.0" ;
}
convertNumsToDouble() ;
answer = dNum1 - dNum2 ;
pendingOp = false ;
setResults() ;
MyPrint( "subOp() 2: opCode is " + opCode + " The value of answer is " + answer );
secondNum = "0.0" ;
opCode = -1 ;

}
else if ( pendingOpCode == 0 || pendingOpCode == 1 || pendingOpCode == 3 ) {
MyPrint( "subOp() 2a: In pendingOpCode =s " + pendingOpCode ) ;
pendingOp = true ;
opCodeMethod() ;
}
else if ( opCode == 2 ) {
MyPrint( "subOp() 3: In pendingOp code. The opcode value is " + opCode ) ;
firstNum = enterBox.getText() ;
if ( secondNum.equals( "" ) ) {
secondNum = "0.0" ;
}
pendingOp = true ;
pendingOpCode = 2 ;
opCode = 2 ;
result = true ;
MyPrint( "subOp() 4: pendingOpCode is " + pendingOpCode +
" The value of answer is " + answer );
}
}

public void plusOp() {
opCode = 3 ;

MyPrint( "plusOp() 1a: The opcode value is " + opCode +
" The value of firstNum is " + firstNum +
" The value of answer is " + answer ) ;

if ( pendingOpCode == 3 ) {
secondNum = enterBox.getText() ;
if ( secondNum.equals( "" ) ) {
secondNum = "0.0" ;
}
convertNumsToDouble() ;
answer = dNum1 + dNum2 ;
pendingOp = false ;
setResults() ;
MyPrint( "plusOp() 2: opCode is " + opCode + " The value of answer is " + answer );
secondNum = "0.0" ;
opCode = -1 ;

}
else if ( pendingOpCode == 0 || pendingOpCode == 1 || pendingOpCode == 2 ) {
MyPrint( "plusOp() 3: In pendingOpCode =s " + pendingOpCode ) ;
pendingOp = true ;
opCodeMethod() ;
}
else if ( opCode == 3 ) {
MyPrint( "plusOp() 4: In pendingOp code. The opcode value is " + opCode ) ;
firstNum = enterBox.getText() ;
if ( secondNum.equals( "" ) ) {
secondNum = "0.0" ;
}
opCode = 3 ;
pendingOp = false ;
pendingOpCode = 3 ;
MyPrint( "plusOp() 5: opCode is " + opCode + " The value of answer is " + answer );
opCode = -1 ;
result = true ;
}

}
public void convertNumsToDouble() {
if ( !firstNum.equals( "" ) ) {
dNum1 = Double.parseDouble( firstNum ) ;
}
if ( !secondNum.equals( "" ) ) {
dNum2 = Double.parseDouble( secondNum ) ;
}
MyPrint( "convertNumsToDouble(): The value of dNum1 is " + dNum1 );
MyPrint( "convertNumsToDouble(): The value of dNum2 is " + dNum2 );

}

public void sysExit() {
System.exit( 0 );

}

public void MyPrint( String str ) {
if ( myDiag )
System.out.println( str );

}


public static void main( String args[] ) {

final kalkulator app = new kalkulator () ;

app.addWindowListener(
new WindowAdapter() {
public void windowClosing( WindowEvent e )
{
app.sysExit() ;
}
}
);
}

public String getTempStr() {
return tempStr;
}

public void setTempStr(String tempStr) {
this.tempStr = tempStr;
}
}

Di atas kodenya gan, dan ane butuh banget untuk masukin coding konversi ke binary digit ane harus masukin darimana gan? dan apa nama kodenya algorithmanya ane ngerti gan tapi ane beginner java lah...

cendol kalau bisa +1 aja gak ada ID lagi...