Create an object from a string : Object « Reflection « Java

Home
Java
1.2D Graphics GUI
2.3D
3.Advanced Graphics
4.Ant
5.Apache Common
6.Chart
7.Class
8.Collections Data Structure
9.Data Type
10.Database SQL JDBC
11.Design Pattern
12.Development Class
13.EJB3
14.Email
15.Event
16.File Input Output
17.Game
18.Generics
19.GWT
20.Hibernate
21.I18N
22.J2EE
23.J2ME
24.JavaFX
25.JDK 6
26.JDK 7
27.JNDI LDAP
28.JPA
29.JSP
30.JSTL
31.Language Basics
32.Network Protocol
33.PDF RTF
34.Reflection
35.Regular Expressions
36.Scripting
37.Security
38.Servlets
39.Spring
40.Swing Components
41.Swing JFC
42.SWT JFace Eclipse
43.Threads
44.Tiny Application
45.Velocity
46.Web Services SOA
47.XML
Java » Reflection » Object 




Create an object from a string
 


public class Main {
  public static void main(String[] argvthrows Exception {
    Class[] classParm = null;
    Object[] objectParm = null;

    try {
      String name = "java.lang.String";
      Class cl = Class.forName(name);
      java.lang.reflect.Constructor co = cl.getConstructor(classParm);
      System.out.println(co.newInstance(objectParm));
    catch (Exception e) {
      e.printStackTrace();
      
    }

  }
}

   
  














Related examples in the same category
1.Determine the Superclass of an Object
2.Obtain from where a Class is loaded
3.Find the Package of an Object
4.Get the class By way of an object
5.Get the fully-qualified name of a class
6.Get the fully-qualified name of a inner class
7.Get the unqualified name of a class
8.Get the name of a primitive type
9.Get the name of an array
10.Get the name of void
11.Getting the Superclass of a Class Object
12.For the primitive tipe the interface will be an empty array
13.If a class object is an interface or a class
14.Using Reflection to browse a java class
15.Instantiate unknown class at runtime and call the object's methods
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.