Homework: write a Java application as required (hope bosses more help, emergency)-CodePudding

Menu design and event: (1) including commodity management, commodity increases, commodity change, goods to delete, dividing line, commodity query; Settings: red, yellow, green, (2) query menu click commodity, jump to the new framework, click a different color, frame color

CodePudding user response:

refer to the original poster weixin_46053515 response:

menu design and event: (1) including commodity management: commodity increases, commodity change, goods to delete, dividing line, commodity query; Setting: red, yellow, green, (2) query menu click on the commodity, jump to the new framework, click on the different color, frame color

 
Public class TestFrame extends JFrame implements ActionListener {
TestFrame () {
SetSize (480, 300); 
JMenuBar jb=new JMenuBar (); 
JMenu jmenu1=new JMenu (" commodity management "); 
JMenuItem jitem1=new JMenuItem (" commodity increase "); 
JMenuItem jitem2=new JMenuItem (" goods to modify "); 
JMenuItem jitem3=new JMenuItem (delete "goods"); 
JMenuItem jitem4=new JMenuItem (" query goods "); 
Jmenu1. Add (jitem1); 
Jmenu1. Add (jitem2); 
Jmenu1. Add (jitem3); 
Jmenu1. AddSeparator (); 
Jmenu1. Add (jitem4); 
JMenu jmenu2=new JMenu (" set "); 
JMenuItem jitem5=new JMenuItem (" red "); 
JMenuItem jitem6=new JMenuItem (" yellow "); 
JMenuItem jitem7=new JMenuItem (" green "); 
Jmenu2. Add (jitem5); 
Jmenu2. Add (jitem6); 
Jmenu2. Add (jitem7); 
Jb. The add (jmenu1); 
Jb. The add (jmenu2); 
Jitem4. AddActionListener (this); 
Jitem5. AddActionListener (this); 
Jitem6. AddActionListener (this); 
Jitem7. AddActionListener (this); 
SetJMenuBar (jb); 
SetDefaultCloseOperation (DISPOSE_ON_CLOSE); 
setVisible(true); 
} 

Public static void main (String [] args) {
New TestFrame (); 
} 

@ Override 
Public void actionPerformed (an ActionEvent e) {
//TODO Auto - generated method stub 
System. The out. Println (um participant etActionCommand ()); 
If (um participant etActionCommand (.) the equals (" commodity query ")) {
New GueryFrame (); 
} else if (um participant etActionCommand (.) the equals (" red ")) {
GetContentPane (). SetBackground (Color red); 
Repaint (); 
} else if (um participant etActionCommand (.) the equals (" yellow ")) {
GetContentPane (). SetBackground (Color yellow); 
Repaint (); 
} else if (um participant etActionCommand (.) the equals (" green ")) {
GetContentPane (). SetBackground (Color. Green); 
Repaint (); 
} 

} 

}

 
Public class GueryFrame extends JFrame {

GueryFrame () {
SetSize (480, 300); 
SetTitle (" query goods "); 
SetDefaultCloseOperation (DISPOSE_ON_CLOSE); 
setVisible(true); 
} 

}

CodePudding user response:

Thank you for your big help