关于java仿win10计算器

shengjunlintianxia 2017-08-07 10:07:01

本人用java仿win10想做个计算器，在显示结果的地方卡住了，不懂做了，各位大神能不能带飞下，以下是我的代码



public class Calculator1 extends JFrame implements ActionListener {

	JFrame jf;

	JTextArea jta;

	JButton jb0, jb1, jb2, jb3, jb4, jb5, jb6, jb7, jb8, jb9, jia, jian, cheng,

			chu, dian, baifen, clean, delete, deng, pai;

	JPanel jp1, jp2;

	JLabel jl;



	// 初始化界面

	public void init() {

		jf = new JFrame("计算器");



		jb0 = new JButton("0");

		jb1 = new JButton("1");

		jb2 = new JButton("2");

		jb3 = new JButton("3");

		jb4 = new JButton("4");

		jb5 = new JButton("5");

		jb6 = new JButton("6");

		jb7 = new JButton("7");

		jb8 = new JButton("8");

		jb9 = new JButton("9");

		pai = new JButton("π");



		jia = new JButton("+");

		jian = new JButton("-");

		cheng = new JButton("x");

		chu = new JButton("/");

		dian = new JButton(".");

		deng = new JButton("=");

		baifen = new JButton("%");

		clean = new JButton("C");

		delete = new JButton("[<x]");



		jp1 = new JPanel();

		jp2 = new JPanel();



		jl = new JLabel("0");

		jl.setBounds(255, 135, 75, 50);

		jl.setFont(new Font("黑体", Font.BOLD, 20));



		jta = new JTextArea();

		jta.setSize(300, 200);

		jta.setEditable(false);



		jp1.setLayout(new GridLayout(5, 4));

		jp1.add(pai);

		jp1.add(clean);

		jp1.add(delete);

		jp1.add(chu);

		jp1.add(jb7);

		jp1.add(jb8);

		jp1.add(jb9);

		jp1.add(cheng);

		jp1.add(jb4);

		jp1.add(jb5);

		jp1.add(jb6);

		jp1.add(jian);

		jp1.add(jb1);

		jp1.add(jb2);

		jp1.add(jb3);

		jp1.add(jia);

		jp1.add(baifen);

		jp1.add(jb0);

		jp1.add(dian);

		jp1.add(deng);

		jp1.setBounds(0, 200, 296, 270);



		jp2.add(jl);

		jp2.setBounds(0, 0, 296, 200);



		jf.add(jl);

		jf.add(jp1);

		jf.setLayout(new BorderLayout());

		jf.setVisible(true);

		jf.setSize(300, 500);

		jf.setResizable(false);

		jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);



	}



	// 按钮功能

	public void feature() {



	}



	public static void main(String[] args) {

		// TODO Auto-generated method stub

		Calculator1 cal = new Calculator1();

		cal.init();



	}



	public void actionPerformed(ActionEvent e) {

		// TODO Auto-generated method stub

	}

}