Java

package Demo;
import java.io*;
public class A{
    public A(){}
    public static void main(String args[])throws IOException{
        int[] anArray=new int[3];
        anArray[0]=10;
        anArray[1]=20;
        anArray[2]=30;
        System.out.println("Array[0] index now contains: "+anArray[0]);
        System.out.println("Array[1] index now contains: "+anArray[1]);
        System.out.println("Array[2] index now contains: "+anArray[2]);
    }
}

I calculate my days on earth..... approximately 55 years remaining for me to expire

public class PassingRefs{

	static boolean varbyteobject(byte [] obj)
	{
		System.out.println("---inside routine---");
		int rndlen=(int)(Math.round(Math.random()*50)+1);
		
		obj=new byte[rndlen];
		System.out.println(obj.length);
		
		return true;
	}

	public static void main(String [] args){
		byte [] inpobj=null;
		varbyteobject(inpobj);
		System.out.println("---out from routine---");
		System.out.println(inpobj.length);
	}

}

---inside routine---
29
---out from routine---
Exception in thread "main" java.lang.NullPointerException
	at PassingRefs.main(PassingRefs.java:18)