MyClassLoader.java Source code

Introduction

Here is the source code for MyClassLoader.java

Source

import java.io.FileInputStream;
import java.io.IOException;
import java.lang.reflect.Method;

class MyClassLoader extends ClassLoader {
    public Class findClass(String name) {
        byte[] classData = null;
        try {
            FileInputStream f = new FileInputStream("C:\\" + name + ".class");
            int num = f.available();
            classData = new byte[num];
            f.read(classData);
        } catch (IOException e) {
            System.out.println(e);
        }
        Class x = defineClass(name, classData, 0, classData.length);
        return x;
    }
}

public class MainClass {

    static public void main(String args[]) throws Exception {
        MyClassLoader x = new MyClassLoader();
        Class c = x.loadClass(args[0]);
        Class getArg1[] = { (new String[1]).getClass() };
        Method m = c.getMethod("main", getArg1);
        String[] my1 = { "arg1 passed", "arg2 passed" };
        Object myarg1[] = { my1 };
        m.invoke(null, myarg1);

    }

}