[NeKromancer]

Here's the answer the Q1 in Java.

import java.io.*;

public class exam {
	
	private static String input = "";
	private static BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
	
	/**
 * *Constructor
	*/	
	public static void main(String[] args) {
 *
 *int x = -999;
 *int y = -999;
 *
 *try {
 *	x = getNumber("x");
 *	y = getNumber("y");
 *	in.close();
 *}
 *catch(IOException ex) {
 *	ex.printStackTrace();
 *}
 *
 *System.out.print("second_root_of(x*x+y*y) is ");
 *System.out.println(secondRootOf(x,y));
 *
	}
	
	
	/**
 * Function secondRootOf(int , int)
 * 
 * @return int
	*/
	private static int secondRootOf(int x, int y)
	{
 *return x*x+y*y;
	}
	
	
	
	/**
 * *Function getNumber(String)
 * *
 * *@exception NumberFormatException
 * *@throws IOException
 * *@return int
	*/
	private static int getNumber(String which) throws IOException
	{
 *boolean stop = false;
 *int num = 0;
 *
 *while(!stop) {
 *	
 *	try {
 * *System.out.print("Enter "+which+": ");
 * *input = in.readLine();
 * *num = Integer.parseInt(input);
 * *
 * *if(num < 0) {
 * *	num = num*-1;
 * *}
 *	
 * *stop = true;
 *	}
 *	catch(NumberFormatException nfe) {
 * *System.out.println("Not a valid integer, try again");
 * *stop = false;
 *	}
 *}
 *
 *return num;
	}

}//end class