· 6 years ago · Apr 05, 2020, 06:32 PM
1To see the previous two topics of this click here :
2
3 - Class loading : ( https://tinyurl.com/vzjoeaa )
4_____________________________________
5
6To get the full code, please click here: ( https://tinyurl.com/rbnoowh )
7.....................................
8import javax.swing.*;
9import java.awt.*;
10import java.awt.event.ActionEvent;
11import java.awt.event.ActionListener;
12import java.lang.reflect.InvocationTargetException;
13import java.lang.reflect.Method;
14
15
16
17public class Class1 {
18
19
20 public static void main(String args[]){
21 JFrame frame = new JFrame();
22 JTextField txt = new JTextField();
23 txt.setSize(200, 50);
24 JButton btn = new JButton("click");
25 JCheckBox cb2 = new JCheckBox("class2");
26 JCheckBox cb3 = new JCheckBox("class3");
27 btn.addActionListener(new ActionListener() {
28 @Override
29 public void actionPerformed(ActionEvent e) {
30
31 if (cb2.isSelected()){
32 String nom = "Class2";
33 try {
34 Class c = Class.forName(nom);
35 System.out.println("tttt :"+c.getTypeName());
36 Object name = c.newInstance();
37 System.out.println("Classe 2 a ete chargee avec succee !!");
38 Method meth = c.getMethod("main");
39 Object result = meth.invoke(name);
40 } catch (ClassNotFoundException ex) {
41 ex.printStackTrace();
42 } catch (IllegalAccessException e1) {
43 e1.printStackTrace();
44 } catch (InstantiationException e1) {
45 e1.printStackTrace();
46 } catch (NoSuchMethodException e1) {
47 e1.printStackTrace();
48 } catch (InvocationTargetException e1) {
49 e1.printStackTrace();
50 }
51 }
52...........................................
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