computer.java

实现计算器功能

import java.awt.*;

import javax.swing.*;


public class Computer{
	NumberButton numberButton[];
	OperationButton operationButton[];
	JButton backspace,clear;
	JButton kaifan,baifen,daoshu,denghao,log,zhishu,jiecheng,ln,sin,cos,tan;
	JTextField textField;
	Panel panel1;
	JFrame frame;
	
	
	public Computer(){
		numberButton=new NumberButton[10];
		for(int i=0;i<10;i++){
			numberButton[i]=new NumberButton(i);
		}
		String operations[]={"+","-","*","/"};
		operationButton=new OperationButton[4];
		for(int i=0;i<4;i++){
			operationButton[i]=new OperationButton(operations[i]);
		}
		backspace=new JButton("backspace");
		clear=new JButton("C");
		kaifan=new JButton("sqrt");
		baifen=new JButton("%");
		daoshu=new JButton("1/x");
		log=new JButton("log");
		zhishu=new JButton("y^x");
		jiecheng=new JButton("n!");
		ln=new JButton("ln");
		sin=new JButton("sin");
		cos=new JButton("cos");
		tan=new JButton("tan");
		GridLayout layout=new GridLayout(1,7);
		panel1=new Panel();
		panel1.setLayout(layout);
		//panel1.add(textField);
		//panel1.add(backspace);
		//panel1.add(clear);
		panel1.add(numberButton[7]);
		panel1.add(numberButton[8]);
		panel1.add(numberButton[9]);
		panel1.add(operationButton[3]);
		panel1.add(kaifan);
		panel1.add(log);
		panel1.add(sin);
		frame=new JFrame();
		frame.add(panel1);
		frame.setVisible(true);
		frame.pack();
	}
	
	public static void main(String[]args){
		new Computer();
	}
}