Java Program 010

Write a program DisplayPattern2.java, which accepts a number as argument and print the following output:

Ex. Input : 5

Output:
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5

public class DisplayPattern2
{
    public static void main(String args[])
    {
        int end = Integer.parseInt(args[0]);
        for(int i = 1; i <= end; i++)
        {
            for(int j = 1; j <= i; j++)
                System.out.print(j + " ");
            System.out.println("");
        }
    }
}

Java Program 003

Write a program to print sum of all even numbers between given numbers.

// Author  : J. Srivastav Reddy
// Date     : 30-7-2013

public class SumOfEvenNumbersInBetween
{
        public static void main(String[] args)
	{
		int start = Integer.parseInt(args[0]) + 1;

                int stop  = Integer.parseInt(args[1]);

                int sum = 0;
		for (; start < stop; start ++)
		{
			if(start %2 == 0)
				sum = sum + start;
		}
		
		System.out.println(" Sum of Even No in given Range is " + sum);
		
	}
}

Java Program 002

Write a program DisplayNumbers.java, which accepts two int values as command line arguments (Start value and End value) and print the numbers between the given Numbers.

// Author    J. Srivastav Reddy
// Date      30-7-2013

public class DisplayNumbers
{
        public static void main(String[] args)
        {
                int start = Integer.parseInt(args[0]);
                int stop  = Integer.parseInt(args[1]);
		
                for (; start < stop; start ++)
                        System.out.print(start + " ");
        }
}

Java Program 001

Write solution for java code for counting the number of numbers, reading one at a time. If the given no is negative, count can be stopped and program exit.

// Author   J. Srivastav Reddy

// Date     30-7-2013

public class CountingNumbers

{

    public static void main(String args[])

    {

        int count = 0;

               

        for(int i=0; i<args.length; i++ )

        {

            int num=Integer.parseInt(args[i]);

                if(num > 0)

                    count++;

                else

                    break;

        }

        System.out.println(" Numbers are " + count);

    }

}