UC知道java 题目,怎样改一下这段代码
来源：百度知道 编辑：UC知道 时间：2024/06/09 23:26:12
/**
*
*/
package src;
//import javax.swing.*;
import javax.swing.*;
import java.awt.*;
/
public class TestFrame extends JFrame{
TestFrame(){
super("Test MyFrame extends JFrame" + ++id);
}
public static void main(String[] args) {
int id =0;
if (id<=3){
TestFrame f = new TestFrame();
f.setVisible(true);
f.setBounds(100,100,400,400);}
}
}
*
*/
package src;
//import javax.swing.*;
import javax.swing.*;
import java.awt.*;
/
public class TestFrame extends JFrame{
TestFrame(){
super("Test MyFrame extends JFrame" + ++id);
}
public static void main(String[] args) {
int id =0;
if (id<=3){
TestFrame f = new TestFrame();
f.setVisible(true);
f.setBounds(100,100,400,400);}
}
}
/**
*
*/
package src;
//import javax.swing.*;
import javax.swing.*;
import java.awt.*;
/
public class TestFrame extends JFrame{
// 加入参数id, 否则构造方法里面找不到id
TestFrame(int id){
super("Test MyFrame extends JFrame" + ++id);
}
public static void main(String[] args) {
int id =0;
if (id<=3){
TestFrame f = new TestFrame(id);
// 显示之前先安排好位置
f.setBounds(100,100,400,400);
f.setVisible(true);
}
}
}
package src;
//import javax.swing.*;
import javax.swing.*;
import java.awt.*;
/
public class TestFrame extends JFrame{
TestFrame(int id){
super("Test MyFrame extends JFrame" + ++id);
}
public static void main(String[] args) {
int id =0;
while(id<=3){
TestFrame f = new TestFrame(id);
f.setBounds(100,100,400