[hiranya]

This is a simple problem with many possible solutions. I have done it in a very simple way. I first developed the following class.

Code:

public class Length {
	private int _feet;
	private int _inches;
	
	public Length(int f, int i) 
	{
		this._feet = f;
		this._inches = i;
	}
	
	public void showLength()
	{
		System.out.println(_feet+"' "+_inches+"''");
	}
	
	public Length add(Length l)
	{
		int inches=l._inches+this._inches;
		int feet=l._feet+this._feet;
		
		if (inches>12)
		{
			feet+=inches/12;
			inches%=12;
		}
		return new Length(feet, inches);
	}
}

Then I wrote the following client class to do the addition for me.

Code:

public class LengthAdderClient {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Length l1=new Length(4,7);
		Length l2=new Length(3,10);
		Length l3=new Length(6, 4);
		Length sum=l1.add(l2);
		sum=sum.add(l3);
		System.out.print("Length 1: ");
		l1.showLength();
		System.out.print("Length 2: ");
		l2.showLength();
		System.out.print("Length 3: ");
		l3.showLength();
		System.out.print("Sum: ");
		sum.showLength();
	}

}

I get the following output on my console.

Code:

Length 1: 4' 7''
Length 2: 3' 10''
Length 3: 6' 4''
Sum: 14' 9''

Hope this helps...

Regards,
Hiranya