运行图形界面程序,没有反应。。程序应该没有什么问题package com.test1;import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;public class MyServer3 extends JFrame{
JTextArea jta=null;
JTextField jtf=null;
JButton jb=null;
JScrollPane jsp=null;
JPanel jp1=null;
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub }
public MyServer3(){
jta=new JTextArea();
jsp=new JScrollPane(jta);
jtf=new JTextField(20);
jb=new JButton("发送");
jp1=new JPanel();
jp1.add(jtf);
jp1.add(jb);
this.add(jsp,"Center");
this.add(jp1,"South");
this.setSize(400,300);
this.setVisible(true);
}}
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;public class MyServer3 extends JFrame{
JTextArea jta=null;
JTextField jtf=null;
JButton jb=null;
JScrollPane jsp=null;
JPanel jp1=null;
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub }
public MyServer3(){
jta=new JTextArea();
jsp=new JScrollPane(jta);
jtf=new JTextField(20);
jb=new JButton("发送");
jp1=new JPanel();
jp1.add(jtf);
jp1.add(jb);
this.add(jsp,"Center");
this.add(jp1,"South");
this.setSize(400,300);
this.setVisible(true);
}}
EventQueue.invokeLater(new Runnable() {
public void run() {
JFrame frame = new MyServer3();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
});
}
for (int i = 0; i < jbls.length; i++) {
jbls[i]=new JLabel(i+1+"",new ImageIcon("image/mm.jpg"));
}
i+1+"",整形数加上一个空串?这是什么意思呢?