Java-Projects/SimpleCalculatorWithSwing at main · kokonior/Java-Projects · GitHub

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//By Pyndho Cevin Taraya
import java.awt.event.*;
import javax.swing.*;

public class FourOperations implements ActionListener{
    private JTextField jTFinput1, jTFinput2, jTFHasil;
    private JLabel label1, label2, labelHasil;
    private JButton btnJumlah, btnKurang, btnBagi, btnKali;

    public FourOperations(){
        JFrame frame = new JFrame();
        frame.setBounds(200,200,400,225);
        frame.setTitle("SIMPLE PROGRAM TO COUNT");

        label1 = new JLabel("Bilangan 1 : ");
        label1.setBounds(25, 25, 100, 25);
        frame.add(label1);

        label2 = new JLabel("Bilangan 2 : ");
        label2.setBounds(25, 75, 100, 25);
        frame.add(label2);

        jTFinput1 = new JTextField();
        jTFinput1.setBounds(125,25,75,25);
        frame.add(jTFinput1);

        jTFinput2 = new JTextField();
        jTFinput2.setBounds(125,75,75,25);
        frame.add(jTFinput2);

        jTFHasil = new JTextField();
        jTFHasil.setBounds(225, 125, 125, 25);
        frame.add(jTFHasil);

        btnJumlah = new JButton("+");
        frame.add(btnJumlah);
        btnJumlah.setBounds(225,25,50, 25);

        btnKurang = new JButton("-");
        frame.add(btnKurang);
        btnKurang.setBounds(225,75,50, 25);

        btnKali = new JButton("*");
        frame.add(btnKali);
        btnKali.setBounds(300,25,50, 25);

        btnBagi = new JButton("/");
        frame.add(btnBagi);
        btnBagi.setBounds(300,75,50, 25);

        labelHasil = new JLabel("Hasil : ");
        labelHasil.setBounds(160, 125, 100, 25);
        frame.add(labelHasil);

        frame.setLayout(null);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        btnJumlah.addActionListener(this);
        btnKali.addActionListener(this);
        btnKurang.addActionListener(this);
        btnBagi.addActionListener(this);
    }
    public void actionPerformed(ActionEvent e){
        if(e.getSource() == btnKali){
            int bilangan1 = (Integer.parseInt(jTFinput1.getText().trim()));
            int bilangan2 = (Integer.parseInt(jTFinput2.getText().trim()));
            int hasil = bilangan1 * bilangan2;
            jTFHasil.setText(String.valueOf(hasil));
        } else if(e.getSource() == btnJumlah){
            int bilangan1 = (Integer.parseInt(jTFinput1.getText().trim()));
            int bilangan2 = (Integer.parseInt(jTFinput2.getText().trim()));
            int hasil = bilangan1 + bilangan2;
            jTFHasil.setText(String.valueOf(hasil));
        } else if(e.getSource() == btnBagi){
            int bilangan1 = (Integer.parseInt(jTFinput1.getText().trim()));
            int bilangan2 = (Integer.parseInt(jTFinput2.getText().trim()));
            int hasil = bilangan1 / bilangan2;
            jTFHasil.setText(String.valueOf(hasil));
        } else if(e.getSource() == btnKurang){
            int bilangan1 = (Integer.parseInt(jTFinput1.getText().trim()));
            int bilangan2 = (Integer.parseInt(jTFinput2.getText().trim()));
            int hasil = bilangan1 - bilangan2;
            jTFHasil.setText(String.valueOf(hasil));
        }
    }
    public static void main(String[] args) {
        FourOperations obj = new FourOperations();
    }
}