how to load a class in java code example
Example 1: custom classloader
package test.main;
import java.lang.reflect.InvocationTargetException;
public class Test {
public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException, NoSuchMethodException, Exception {
MyClassLoader loader = new MyClassLoader(
Test.class.getClassLoader());
System.out.println("loader name---- " +loader.getParent().getClass().getName());
//This Loads the Class we must always
//provide binary name of the class
Class<?> clazz =
loader.loadClass("test.frugalis.Frugalis");
System.out.println("Loaded class name: " + clazz.getName());
//Create instance Of the Class and invoke the particular method
Object instance = clazz.newInstance();
clazz.getMethod("printMyName").invoke(instance);
}
}
Example 2: custom classloader
loader name---- sun.misc.Launcher$AppClassLoader
Class Loading Started for test.frugalis.Frugalis
*********Inside getClass*********
Name of Filetest\frugalis\Frugalis.class
<<<<<<<<<Inside loadClassData>>>>>>
Size of byte array 519
Class Loading Started for java.lang.Object
Loaded class name: test.frugalis.Frugalis
Class Loading Started for java.lang.System
Class Loading Started for java.io.PrintStream
Welcome Frugalis Minds