diff --git a/Calc.java b/Calc.java new file mode 100644 index 000000000..ee0703622 --- /dev/null +++ b/Calc.java @@ -0,0 +1,210 @@ +import javax.swing.*; +import java.awt.event.*; + + +class Calc implements ActionListener +{ + JFrame f; + JTextField t; + JButton b1,b2,b3,b4,b5,b6,b7,b8,b9,b0,bdiv,bmul,bsub,badd,bdec,beq,bdel,bclr; + + static double a=0,b=0,result=0; + static int operator=0; + + Calc() + { + f=new JFrame("Calculator"); + t=new JTextField(); + b1=new JButton("1"); + b2=new JButton("2"); + b3=new JButton("3"); + b4=new JButton("4"); + b5=new JButton("5"); + b6=new JButton("6"); + b7=new JButton("7"); + b8=new JButton("8"); + b9=new JButton("9"); + b0=new JButton("0"); + bdiv=new JButton("/"); + bmul=new JButton("*"); + bsub=new JButton("-"); + badd=new JButton("+"); + bdec=new JButton("."); + beq=new JButton("="); + bdel=new JButton("Delete"); + bclr=new JButton("Clear"); + + t.setBounds(30,40,280,30); + b7.setBounds(40,100,50,40); + b8.setBounds(110,100,50,40); + b9.setBounds(180,100,50,40); + bdiv.setBounds(250,100,50,40); + + b4.setBounds(40,170,50,40); + b5.setBounds(110,170,50,40); + b6.setBounds(180,170,50,40); + bmul.setBounds(250,170,50,40); + + b1.setBounds(40,240,50,40); + b2.setBounds(110,240,50,40); + b3.setBounds(180,240,50,40); + bsub.setBounds(250,240,50,40); + + bdec.setBounds(40,310,50,40); + b0.setBounds(110,310,50,40); + beq.setBounds(180,310,50,40); + badd.setBounds(250,310,50,40); + + bdel.setBounds(60,380,100,40); + bclr.setBounds(180,380,100,40); + + f.add(t); + f.add(b7); + f.add(b8); + f.add(b9); + f.add(bdiv); + f.add(b4); + f.add(b5); + f.add(b6); + f.add(bmul); + f.add(b1); + f.add(b2); + f.add(b3); + f.add(bsub); + f.add(bdec); + f.add(b0); + f.add(beq); + f.add(badd); + f.add(bdel); + f.add(bclr); + + f.setLayout(null); + f.setVisible(true); + f.setSize(350,500); + f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); + f.setResizable(false); + + b1.addActionListener(this); + b2.addActionListener(this); + b3.addActionListener(this); + b4.addActionListener(this); + b5.addActionListener(this); + b6.addActionListener(this); + b7.addActionListener(this); + b8.addActionListener(this); + b9.addActionListener(this); + b0.addActionListener(this); + badd.addActionListener(this); + bdiv.addActionListener(this); + bmul.addActionListener(this); + bsub.addActionListener(this); + bdec.addActionListener(this); + beq.addActionListener(this); + bdel.addActionListener(this); + bclr.addActionListener(this); + } + + public void actionPerformed(ActionEvent e) + { + if(e.getSource()==b1) + t.setText(t.getText().concat("1")); + + if(e.getSource()==b2) + t.setText(t.getText().concat("2")); + + if(e.getSource()==b3) + t.setText(t.getText().concat("3")); + + if(e.getSource()==b4) + t.setText(t.getText().concat("4")); + + if(e.getSource()==b5) + t.setText(t.getText().concat("5")); + + if(e.getSource()==b6) + t.setText(t.getText().concat("6")); + + if(e.getSource()==b7) + t.setText(t.getText().concat("7")); + + if(e.getSource()==b8) + t.setText(t.getText().concat("8")); + + if(e.getSource()==b9) + t.setText(t.getText().concat("9")); + + if(e.getSource()==b0) + t.setText(t.getText().concat("0")); + + if(e.getSource()==bdec) + t.setText(t.getText().concat(".")); + + if(e.getSource()==badd) + { + a=Double.parseDouble(t.getText()); + operator=1; + t.setText(""); + } + + if(e.getSource()==bsub) + { + a=Double.parseDouble(t.getText()); + operator=2; + t.setText(""); + } + + if(e.getSource()==bmul) + { + a=Double.parseDouble(t.getText()); + operator=3; + t.setText(""); + } + + if(e.getSource()==bdiv) + { + a=Double.parseDouble(t.getText()); + operator=4; + t.setText(""); + } + + if(e.getSource()==beq) + { + b=Double.parseDouble(t.getText()); + + switch(operator) + { + case 1: result=a+b; + break; + + case 2: result=a-b; + break; + + case 3: result=a*b; + break; + + case 4: result=a/b; + break; + + default: result=0; + } + + t.setText(""+result); + } + + if(e.getSource()==bclr) + t.setText(""); + + if(e.getSource()==bdel) + { + String s=t.getText(); + t.setText(""); + for(int i=0;iSIMPLE JAVA CALCULATOR + Easy Calculation + +