在线等啊!!进来看下啊~!!!

Question

下面是一个GUI,帮我看下什么错误啊~~总是提示ADD方法有错误!!!怎么回事啊~谢谢import javax.swing.*;
import java.awt.*;public class my extends JFrame{
           JMenuItem kr1=new JMenuItem("open");
           JMenuItem kr2=new JMenuItem("new"); 
     JMenuItem kr3=new JMenuItem("save"); 
           JMenuItem kr4=new JMenuItem("save_as"); 
   JMenuItem kr5=new JMenuItem("exit");  
           Jmenu j1=new Jmenu("file"); 
           j1.add(kr1);
           j1.add(kr2);
           m1.addSeparator();
           j1.add(kr3);
           j1.add(kr4);
           j1.add(kr5);
           JmenuBar p1=new JmenuBar();
          p1.add(j1); 
          pane.setJmenubar(p1);
           JMenuItem kr6=new JMenuItem("edit"); 
     JMenuItem kr7=new JMenuItem("copy"); 
           JMenuItem kr8=new JMenuItem("pick"); 
     JMenuItem kr9=new JMenuItem("cut");
           JMenuItem kr0=new JMenuItem("fullchoice");
          Jmenu j2=new Jmenu("edit"); 
          j2.add(kr6);
          j2.add(kr7);
    m2.addSeparator();
          j2.add(kr8);
          j2.add(kr9);
          j2.add(kr0);
          JmenuBar p2=new JmenuBar();
          p2.add(j1); 
         pane.setJmenubar(p2);      
          Jmenu j3=new Jmenu("figner"); 
          JMenuItem kr11=new JMenuItem("partchoice"); 
          JMenuItem kr12=new JMenuItem("figer");
  JMenuItem kr13=new JMenuItem("protery"); 
  JMenuItem kr14=new JMenuItem("font");
           MenuItem kr15=new JMenuItem("bak"); 
          j3.add(kr11);
          j3.add(kr12);
  m3.addSeparator();
          j3.add(kr13);
          j3.add(kr14);
          j3.add(kr15);
          JmenuBar p3=new JmenuBar();
          p1.add(j3); 
          pane.setJmenubar(p3);  
         JMenuItem kr16=new JMenuItem("first"); 
           JMenuItem kr17=new JMenuItem("color"); 
     JMenuItem kr18=new JMenuItem("u.t");
           JMenuItem kr19=new JMenuItem("p.t");
     JMenuItem kr10=new JMenuItem("page.t"); 
           JMenuItem kr111=new JMenuItem("self.t");     
          Jmenu j4=new Jmenu("tool"); 
          j4.add(kr16);
          j4.add(kr17);
          m4.addSeparator();
           j4.add(kr18);
            j4.add(kr19);
            j4.add(kr10);
            j4.add(kr111);
          JmenuBar p4=new JmenuBar();
          p1.add(j4); 
          pane.setJmenuBar(p4);
          Jpanel t1 =new Jpanel();
          JButton b1=new JButton("back");
          JButton b2=new JButton("serach");
          JButton b3=new JButton("adjust");
          JButton b4=new JButton("file");
          JButton b5=new JButton("cut");
          JButton b6=new JButton("copy");
          JButton b7=new JButton("lead");  
          JButton b8=new JButton("make");
          JComboBox t2=new JComboBox();
          FlowLayout flo=new FlowLayout();
          t2.addItem("size");
          t2.addItem("lay");
          t2.addItem("page");   
          Jpanel t3=new Jpanel();
          JtextArea t5=new JtextArea(8,20);
          t5.setLineWrap(true); 
          t5.setWrapStyLeWord(true);
          JScrollpane scrool=new JScrollpane(t3,JScrollpane.VERTICAL_SCROLLBAR_ALWAYS,JScrollpane.HORIZONTAL_SCROOLBAR_NEVER);
      my()
                 {
                  super("my_first_win");
                  setSize(200,500);
                  setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                  Container pane=new getContentpane();
                  GridLayout r1=new GridLayout();
                  Pane.setLayout(row1);
                  BorderLayout row1=new BorderLayout();                            
                  row1.add(b1);
                  row1.add(b2);
                  row1.add(b3);
                  row1.add(b4);
                  row1.add(b5);
                  row1.add(b6);
                  row1.add(b7);
                  row1.add(b8);
                  b8.add(t2);
  t1.setLayout(r1);
                  Pane.setLayout(flo);
                  pane.add(t2);
                  Pane.setLayout(t3);  
                  Pane.add(t1);   
                  BorderLayout t6=new BorderLaypout(10,10,10,10);
                  p1.add(t6);
                  p2.add(t6);
                  p3.add(t6);
                  p4.add(t6);
                  Pane.setLayout(p1);  
                  pane.setLayout(p2);  
                 pane.setLayout(p3);  
                  pane.setLayout(p4);  
                  FlowLayout t9=new FlowLayout();
    t3.setLayout(t9);
                  t3.add(t5);
                  t3.add(scroll);
                  pane.add(t3);
                       
                   /*public Insets getInsets()
   {
Insets border=new Insets(10,10,10,10);
   return border; }*/
                  setContentPane(pane);
  setVisible(true);      
               }
public static  void main(String [] args)
                {
my win=new my();
                }    
            
                    
                  
                  
}
     
          
}

Answer 1

你可以在类下面去声明变量，但是不能对变量进行其它方法设置，放到构造里去吧public class My extends JFrame{
    JMenuItem kr1=new JMenuItem("open");
    JMenuItem kr2=new JMenuItem("new");
    //.....这些是可以的    public My(){
        j1.add(kr1); // 放在这里就没问题了
        j1.add(kr2);
        // ......
    }}

Answer 2

p1,p2,p3,p4是什么？？？JMenuBar..............

Answer 3

是这样吗?再指点下!!
import javax.swing.*;
import java.awt.*;public class my extends JFrame{
           JMenuItem kr1=new JMenuItem("open");
           JMenuItem kr2=new JMenuItem("new"); 
     JMenuItem kr3=new JMenuItem("save"); 
           JMenuItem kr4=new JMenuItem("save_as"); 
   JMenuItem kr5=new JMenuItem("exit");  
           Jmenu j1=new Jmenu("file"); 
           JmenuBar p1=new JmenuBar();
           
           pane.setJmenubar(p1);
           JMenuItem kr6=new JMenuItem("edit"); 
     JMenuItem kr7=new JMenuItem("copy"); 
           JMenuItem kr8=new JMenuItem("pick"); 
     JMenuItem kr9=new JMenuItem("cut");
           JMenuItem kr0=new JMenuItem("fullchoice");
          Jmenu j2=new Jmenu("edit"); 
          
          JmenuBar p2=new JmenuBar();
           
         pane.setJmenubar(p2);      
          Jmenu j3=new Jmenu("figner"); 
          JMenuItem kr11=new JMenuItem("partchoice"); 
          JMenuItem kr12=new JMenuItem("figer");
  JMenuItem kr13=new JMenuItem("protery"); 
  JMenuItem kr14=new JMenuItem("font");
           MenuItem kr15=new JMenuItem("bak");          
          JmenuBar p3=new JmenuBar();    
          pane.setJmenubar(p3);  
         JMenuItem kr16=new JMenuItem("first");             
          Jmenu j4=new Jmenu("tool");           
          JmenuBar p4=new JmenuBar();         
          pane.setJmenuBar(p4);
          Jpanel t1 =new Jpanel();
          JButton b1=new JButton("back");
          JButton b2=new JButton("serach");
          JButton b3=new JButton("adjust");
          JButton b4=new JButton("file");
          JButton b5=new JButton("cut");
          JButton b6=new JButton("copy");
          JButton b7=new JButton("lead");  
          JButton b8=new JButton("make");
          JComboBox t2=new JComboBox();
          FlowLayout flo=new FlowLayout();
          t2.addItem("size");
          t2.addItem("lay");
          t2.addItem("page");   
          Jpanel t3=new Jpanel();
          JtextArea t5=new JtextArea(8,20);
          t5.setLineWrap(true); 
          t5.setWrapStyLeWord(true);
          JScrollpane scrool=new JScrollpane(t3,JScrollpane.VERTICAL_SCROLLBAR_ALWAYS,JScrollpane.HORIZONTAL_SCROOLBAR_NEVER);
      my()
                 {
                  super("my_first_win");
                  setSize(200,500);
                  setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                  Container pane=new getContentpane();
                  GridLayout r1=new GridLayout();
                  Pane.setLayout(row1);
                  BorderLayout row1=new BorderLayout(); 
                  j1.add(kr1);
                  j1.add(kr2);
                  m1.addSeparator();
                 j1.add(kr3);
                 j1.add(kr4);
                 p1.add(j1);
                 j1.add(kr5);  
                 j2.add(kr6);
                 j2.add(kr7);
           m2.addSeparator();
           j2.add(kr8);
           j2.add(kr9);
            j2.add(kr0);
                 p2.add(j1);   
                 j3.add(kr11);
           j3.add(kr12);
   m3.addSeparator();
           j3.add(kr13);
           j3.add(kr14);
            j3.add(kr15);  
                p1.add(j3); 
                j4.add(kr16);
                j4.add(kr17);
           m4.addSeparator();
            j4.add(kr18);
             j4.add(kr19);
             j4.add(kr10);
          j4.add(kr111);
                p1.add(j4);                     
                  row1.add(b1);
                  row1.add(b2);
                  row1.add(b3);
                  row1.add(b4);
                  row1.add(b5);
                  row1.add(b6);
                  row1.add(b7);
                  row1.add(b8);
                  b8.add(t2);
  t1.setLayout(r1);
                  Pane.setLayout(flo);
                  pane.add(t2);
                  Pane.setLayout(t3);  
                  Pane.add(t1);   
                  BorderLayout t6=new BorderLaypout(10,10,10,10);
                  p1.add(t6);
                  p2.add(t6);
                  p3.add(t6);
                  p4.add(t6);
                  Pane.setLayout(p1);  
                  pane.setLayout(p2);  
                 pane.setLayout(p3);  
                  pane.setLayout(p4);  
                  FlowLayout t9=new FlowLayout();
    t3.setLayout(t9);
                  t3.add(t5);
                  t3.add(scroll);
                  pane.add(t3);
                       
                   /*public Insets getInsets()
   {
Insets border=new Insets(10,10,10,10);
   return border; }*/
                  setContentPane(pane);
  setVisible(true);      
               }
public static  void main(String [] args)
                {
my win=new my();
                }    
            
                    
                  
                  
}
     
          
}

Answer 4

什么意思 具体点好吗  ?JMENUBAR 是容器啊 有什么错误啊 ~~~大哥说清楚点 好吗