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Calculator.java #172

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362 changes: 362 additions & 0 deletions Calculator.java
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Original file line number Diff line number Diff line change
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import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Calculator implements ActionListener
{
JFrame calc;

ImageIcon icon;

JButton numButtons[] = new JButton[10];
JButton funcButtons[] = new JButton[10];

JButton zero;
JButton dot;
JButton plus;
JButton one;
JButton two;
JButton three;
JButton minus;
JButton four;
JButton five;
JButton six;
JButton multi;
JButton seven;
JButton eight;
JButton nine;
JButton div;
JButton equal;
JButton c;
JButton del;
JButton percent;

JTextField calc1;

JLabel jLabel;

double num1=0,num2=0,result=0;
char operator;

Calculator() {
Font btn=new Font("Arial",Font.PLAIN,30);
Font btn1=new Font("Arial",Font.BOLD,20);

calc=new JFrame("Calculator");
calc.setSize(300,350);
calc.setLocation(500,200);
calc.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
calc.setLayout(null);

icon=new ImageIcon("calc-icon.png");
calc.setIconImage(icon.getImage());

Container cont=calc.getContentPane();
cont.setBackground(Color.BLACK);

Color color=new Color(255,132,0);
Color color1=new Color(64,64,64);

Cursor cur=new Cursor(Cursor.HAND_CURSOR);

zero=new JButton("0");
zero.setSize(150,50);
zero.setLocation(0,270);
zero.setFont(btn1);
zero.setBackground(Color.GRAY);
zero.setForeground(Color.WHITE);
zero.setCursor(cur);
zero.setFocusable(false);
numButtons[0]=zero;

dot=new JButton(".");
dot.setSize(75,50);
dot.setLocation(150,270);
dot.setFont(btn1);
dot.setBackground(Color.GRAY);
dot.setForeground(Color.WHITE);
dot.setCursor(cur);
dot.setFocusable(false);
funcButtons[0]=dot;

plus=new JButton("+");
plus.setSize(75,50);
plus.setLocation(225,220);
plus.setFont(btn1);
plus.setBackground(color);
plus.setForeground(Color.WHITE);
plus.setCursor(cur);
plus.setFocusable(false);
funcButtons[1]=plus;

one=new JButton("1");
one.setSize(75,50);
one.setLocation(0,220);
one.setFont(btn1);
one.setBackground(Color.GRAY);
one.setForeground(Color.WHITE);
one.setCursor(cur);
one.setFocusable(false);
numButtons[1]=one;

two=new JButton("2");
two.setSize(75,50);
two.setLocation(75,220);
two.setFont(btn1);
two.setBackground(Color.GRAY);
two.setForeground(Color.WHITE);
two.setCursor(cur);
two.setFocusable(false);
numButtons[2]=two;

three=new JButton("3");
three.setSize(75,50);
three.setLocation(150,220);
three.setFont(btn1);
three.setBackground(Color.GRAY);
three.setForeground(Color.WHITE);
three.setCursor(cur);
three.setFocusable(false);
numButtons[3]=three;

minus=new JButton("-");
minus.setSize(75,50);
minus.setLocation(225,170);
minus.setFont(btn1);
minus.setBackground(color);
minus.setForeground(Color.WHITE);
minus.setCursor(cur);
minus.setFocusable(false);
funcButtons[2]=minus;

four=new JButton("4");
four.setSize(75,50);
four.setLocation(0,170);
four.setFont(btn1);
four.setBackground(Color.GRAY);
four.setForeground(Color.WHITE);
four.setCursor(cur);
four.setFocusable(false);
numButtons[4]=four;

five=new JButton("5");
five.setSize(75,50);
five.setLocation(75,170);
five.setFont(btn1);
five.setBackground(Color.GRAY);
five.setForeground(Color.WHITE);
five.setCursor(cur);
five.setFocusable(false);
numButtons[5]=five;

six=new JButton("6");
six.setSize(75,50);
six.setLocation(150,170);
six.setFont(btn1);
six.setBackground(Color.GRAY);
six.setForeground(Color.WHITE);
six.setCursor(cur);
six.setFocusable(false);
numButtons[6]=six;

multi=new JButton("x");
multi.setSize(75,50);
multi.setLocation(225,120);
multi.setFont(btn1);
multi.setBackground(color);
multi.setForeground(Color.WHITE);
multi.setCursor(cur);
multi.setFocusable(false);
funcButtons[3]=multi;

seven=new JButton("7");
seven.setSize(75,50);
seven.setLocation(0,120);
seven.setFont(btn1);
seven.setBackground(Color.GRAY);
seven.setForeground(Color.WHITE);
seven.setCursor(cur);
seven.setFocusable(false);
numButtons[7]=seven;

eight=new JButton("8");
eight.setSize(75,50);
eight.setLocation(75,120);
eight.setFont(btn1);
eight.setBackground(Color.GRAY);
eight.setForeground(Color.WHITE);
eight.setCursor(cur);
eight.setFocusable(false);
numButtons[8]=eight;

nine=new JButton("9");
nine.setSize(75,50);
nine.setLocation(150,120);
nine.setFont(btn1);
nine.setBackground(Color.GRAY);
nine.setForeground(Color.WHITE);
nine.setCursor(cur);
nine.setFocusable(false);
numButtons[9]=nine;

div=new JButton("/");
div.setSize(75,50);
div.setLocation(225,70);
div.setFont(btn1);
div.setBackground(color);
div.setForeground(Color.WHITE);
div.setCursor(cur);
div.setFocusable(false);
funcButtons[4]=div;

equal=new JButton("=");
equal.setSize(75,50);
equal.setLocation(225,270);
equal.setFont(btn1);
equal.setBackground(color);
equal.setForeground(Color.WHITE);
equal.setCursor(cur);
equal.setFocusable(false);
funcButtons[5]=equal;

c=new JButton("C");
c.setSize(75,50);
c.setLocation(0,70);
c.setFont(btn1);
c.setBackground(color1);
c.setForeground(Color.WHITE);
c.setCursor(cur);
c.setFocusable(false);
funcButtons[6]=c;

del=new JButton("Del");
del.setSize(75,50);
del.setLocation(75,70);
del.setFont(btn1);
del.setBackground(color1);
del.setForeground(Color.WHITE);
del.setCursor(cur);
del.setFocusable(false);
funcButtons[8]=del;

percent=new JButton("%");
percent.setSize(75,50);
percent.setLocation(150,70);
percent.setFont(btn1);
percent.setBackground(color1);
percent.setForeground(Color.WHITE);
percent.setCursor(cur);
percent.setFocusable(false);
funcButtons[7]=percent;

calc1=new JTextField();
calc1.setSize(300,70);
calc1.setLocation(0,0);
calc1.setFont(btn1);
calc1.setBackground(Color.BLACK);
calc1.setForeground(Color.WHITE);
calc1.setEditable(false);

calc.add(zero);
calc.add(dot);
calc.add(plus);
calc.add(one);
calc.add(two);
calc.add(three);
calc.add(minus);
calc.add(four);
calc.add(five);
calc.add(six);
calc.add(multi);
calc.add(seven);
calc.add(eight);
calc.add(nine);
calc.add(c);
calc.add(del);
calc.add(percent);
calc.add(div);
calc.add(equal);
calc.add(calc1);

for(int i=0;i<9;i++)
{
funcButtons[i].addActionListener(this);
}
for(int i=0;i<10;i++)
{

numButtons[i].addActionListener(this);
}

calc.setResizable(false);

calc.setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
for (int i=0;i<10;i++) {
if (e.getSource().equals(numButtons[i])){
calc1.setText(calc1.getText().concat(String.valueOf(i)));
}
}
if (e.getSource().equals(dot)){
calc1.setText(calc1.getText().concat("."));
}
if (e.getSource().equals(plus)){
num1=Double.parseDouble(calc1.getText());
operator='+';
calc1.setText("");
}
if (e.getSource().equals(minus)){
num1=Double.parseDouble(calc1.getText());
operator='-';
calc1.setText("");
}
if (e.getSource().equals(multi)){
num1=Double.parseDouble(calc1.getText());
operator='*';
calc1.setText("");
}
if (e.getSource().equals(div)){
num1=Double.parseDouble(calc1.getText());
operator='/';
calc1.setText("");
}
if (e.getSource().equals(percent)){
num1=Double.parseDouble(calc1.getText());
operator='%';
calc1.setText("");
}
if(e.getSource().equals(equal)){
num2=Double.parseDouble(calc1.getText());
switch(operator){
case'+':
result=num1+num2;
break;
case'-':
result=num1-num2;
break;
case'*':
result=num1*num2;
break;
case'/':
result=num1/num2;
break;
case'%':
result=num1%num2;
break;
}
calc1.setText(String.valueOf(result));
num1=result;
}
if(e.getSource().equals(c)){
calc1.setText("");
}
if(e.getSource().equals(del)){
String string=calc1.getText();
calc1.setText("");
for(int i=0;i<string.length()-1;i++){
calc1.setText(calc1.getText()+string.charAt(i));
}
}
}
}