标签:seo gets inpu triangle string null invoke jbutton 包含
类测试代码的具体要求如下:
设计三角形完整程序
已经完成的方法是: String triangle(int a,int b,int c)
现在要求继续增加新的功能:
建立界面,至少包含以下元素,但不限于此:

完成面积的方法:float triangleArea(int a,int b,int c) ,完成周长的方法:int perimeter(int a,int b,int c)
一、类图

二、功能界面
1

2

3

4

5

6

三、代码:
import java.awt.EventQueue;
import java.awt.Color;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import java.awt.BorderLayout;
import javax.swing.JButton;
import javax.swing.JTextField;
import java.awt.Font;
import javax.swing.UIManager;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JLabel;
public class Jframe {
private JFrame jframe;
private static TriangleTest text;
private JTextField texta;
private JTextField textb;
private JTextField textc;
private JTextField perimeter;
private JTextField number;
private JTextField outarea;
public void Triangle() {
jframe = new JFrame();
jframe.setForeground(Color.green);
jframe.setTitle("欢迎使用三角形管理系统");
jframe.setBounds(500, 350, 500, 430);
jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel jpanel = new JPanel();
jpanel.setBounds(50, 50, 400, 280);
jframe.getContentPane().add(jpanel, BorderLayout.CENTER);
JLabel input = new JLabel("请输入三角形的三条边:");
jpanel.add(input);
JPanel jp = new JPanel();
jpanel.add(jp);
JLabel jpa = new JLabel("a:");
jp.add(jpa);
texta = new JTextField();
jp.add(texta);
texta.setColumns(5);
JLabel jpb = new JLabel("b:");
jp.add(jpb);
textb = new JTextField();
jp.add(textb);
textb.setColumns(5);
JLabel jpc = new JLabel("c:");
jp.add(jpc);
textc = new JTextField();
jp.add(textc);
textc.setColumns(5);
JPanel bto = new JPanel();
bto.setSize(600, 90);
jpanel.add(bto);
final JButton btok = new JButton("OK");
bto.add(btok);
final JButton btc = new JButton("Cancel");
bto.add(btc);
JPanel outpanel = new JPanel();
jpanel.add(outpanel);
JLabel output = new JLabel();
output.setText("这个三角形是:");
number = new JTextField();
number.setFont(new Font("宋体", Font.PLAIN, 15));
outpanel.add(number);
number.setEditable(false);
number.setColumns(18);
JPanel jpout = new JPanel();
jpanel.add(jpout);
JLabel outare = new JLabel();
jpout.add(outare);
outare.setText("面积为:");
outarea = new JTextField();
outarea.setEditable(false);
jpout.add(outarea);
outarea.setColumns(9);
JLabel outper = new JLabel();
jpout.add(outper);
outper.setText("周长为:");
perimeter = new JTextField();
perimeter.setEditable(false);
jpout.add(perimeter);
btc.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent event) {
Object object = event.getSource();
if(object == btc){
texta.setText("");
textb.setText("");
textc.setText("");
number.setText("");
outarea.setText("");
perimeter.setText("");
}
}
});
btok.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent event) {
Object object = event.getSource();
if(object == btok){
int aa,bb,cc;
//获取文本
String a=texta.getText();
String b=textb.getText();
String c=textc.getText();
//p
if(text.IsNotInt(a)&&text.IsNotInt(b)&&text.IsNotInt(c))
{
aa = Integer.parseInt(a);
bb = Integer.parseInt(b);
cc = Integer.parseInt(c);
//
if (!(TriangleTest.triangle(aa, bb, cc)).equals("您输入的边的值不在范围内")&&!(TriangleTest.triangle(aa, bb, cc)).equals("不能构成三角形"))
{
String pe=String.valueOf(text.perimeter(aa, bb, cc));
String ar=String.valueOf(text.triangleArea(aa, bb, cc));
String re=TriangleTest.triangle(aa, bb, cc);
perimeter.setText(pe);
outarea.setText(ar);
number.setText(re);
}
else{
//
String result=TriangleTest.triangle(aa, bb, cc);
number.setText(result);
outarea.setText("");
perimeter.setText("");
perimeter.setText("");
}
}
else{
//
JOptionPane.showMessageDialog(null, "您的输入有误,请重请输入");
new JFrame();
texta.setText("");
textb.setText("");
textc.setText("");
number.setText("");
outarea.setText("");
perimeter.setText("");
}
}
}
});
}
public static void main(String[] args) {
text=new TriangleTest();
EventQueue.invokeLater(new Runnable() {
public void run() {
Jframe window = new Jframe();
//
window.jframe.setVisible(true);
}
});
}
public Jframe() {
Triangle();
}
}
标签:seo gets inpu triangle string null invoke jbutton 包含
原文地址:http://www.cnblogs.com/m350377814/p/6803250.html