WEEK 5 ASSIGNMENT SOLUTION

QUESTION 1 :

//Create a class A which implements the interface Number.
class A implements Number
{
  public int findSqr(int i)
  {
    return i*i;
  }
}

QUESTION 2:

 
//Create a class B, which implements the interface GCD.
class B implements GCD
{
  public int findGCD(int a, int b)
  {
    if(b==0)
      return a;
    else
      return findGCD(b,a%b);
  }
}

QUESTION 3:

//Read any two values for a and b.
 //Get the result of a/b;
a=input.nextInt();
b=input.nextInt();
{
  try
  {
    if(b!=0)
    {
      System.out.print(a/b);
      System.exit(0);
    }
  }
  finally
  {
    System.out.print("Exception caught: Division by zero.");
  }
}

QUESTION 4:

//Define try-catch block to save user input in the array "name",if there is an exception then catch the exception otherwise print the total sum of the array.
try
{
  for(int i=0; i<length; i++)
  {
    name[i]=sc.nextInt();
    sum=sum+name[i];
  }
  System.out.print(sum);
  System.exit(0);
}
finally
{
  System.out.print("You entered bad data.");
}

QUESTION 5:

// Put the following code under try-catch block to handle exceptions
      try
      {
switch (i)
        {
    case 0 :
int zero = 0;
j = 92/ zero;
break;
        case 1 :
int b[ ] = null;
j = b[0] ;
break;
      default:
       System.out.print("No exception");
}
      }
     catch(Exception e)
        {
          System.out.print(e);
        }