求一个计算周长和面积的java程序
来源:百度知道 编辑:UC知道 时间:2024/05/18 17:56:59
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class a
{
public static void main(String []args)
{
b a=new b();
}
}
class b extends JFrame
{
private JLabel x,y,z,a;
private JTextField x1,y1,z1,a1;
private JButton bo,bo2;
public b()
{
x=new JLabel("边长: ",SwingConstants.RIGHT);
y=new JLabel("宽度: ",SwingConstants.RIGHT);
z=new JLabel("周长: ",SwingConstants.RIGHT);
a=new JLabel("面积: ",SwingConstants.RIGHT);
x1=new JTextField(10);
y1=new JTextField(10);
z1=new JTextField(10);
a1=new JTextField(10);
bo=new JButton("开始计算");
bo2=new JButton("退出程式");
setTitle("Area and Primeter of Renctangle-中软科技");
Container pane=getContentPane();
pane.setLayout(new GridLayout(5,2));