import java.awt.*;
import javax.swing.*;

public class Java{
	public static void main(String [] args){
		Frame frame = new Frame();
			frame.show();
			JButton button = new JButton("Кнопка");
			JPanel panel = new JPanel();
			frame.add(panel);
			
			panel.setLayout(null);
			JTextArea display = new JTextArea();
			JButton button0 = new JButton("0");
			JButton button1 = new JButton("1");
			JButton button2 = new JButton("2");
			JButton button3 = new JButton("3");
			JButton button4 = new JButton("4");
			JButton button5 = new JButton("5");
			JButton button6 = new JButton("6");
			JButton button7 = new JButton("7");
			JButton button8 = new JButton("8");
			JButton button9 = new JButton("9");
			JButton button10 = new JButton("+");
			JButton button11 = new JButton("-");
			JButton button12 = new JButton("*");
			JButton button13 = new JButton("C");
			JButton button14 = new JButton("/");
			JButton button15 = new JButton("=");
			
			panel.add(display);
			panel.add(button0);
			panel.add(button1);
			panel.add(button2);
			panel.add(button3);
			panel.add(button4);
			panel.add(button5);
			panel.add(button6);
			panel.add(button7);
			panel.add(button8);
			panel.add(button9);
			panel.add(button10);
			panel.add(button11);
			panel.add(button12);
			panel.add(button13);
			panel.add(button14);
			panel.add(button15);
			
			display.setBounds(0, 0, 285, 20);
			button0.setBounds(0, 21, 95, 45);
			button1.setBounds(95, 21, 95, 45);
			button2.setBounds(190, 21, 95, 45);
			button3.setBounds(0, 66, 95, 45);
			button4.setBounds(95, 66, 95, 45);
			button5.setBounds(190, 66, 95, 45);
			button6.setBounds(0, 111, 95, 45);
			button7.setBounds(95, 111, 95, 45);
			button8.setBounds(190, 111, 95, 45);
			button9.setBounds(0, 156, 95, 45);
			button10.setBounds(95, 156, 95, 45);
			button11.setBounds(190, 156, 95, 45);
			button12.setBounds(0, 201, 95, 45);
			button13.setBounds(95, 201, 95, 45);
			button14.setBounds(190, 201, 95, 45);
			button15.setBounds(0, 246, 285, 22);
					
	}
}
class Frame extends JFrame{
	public Frame(){
		this.setSize(293, 300);
		this.setTitle("Калькулятор");
		this.setResizable(true);
		this.setLocationRelativeTo(null);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
}