Question

1. Given the following program

publicintmaxVal (int[] x)

{

      // Returns the maximum element in x.

      intmax = Integer.MIN_VALUE;

      for(inti=0; i < x.length; i+=2)

      {

            if(x[i] > max)

            {

                  max = x[i];

            }

      }

      returnmax;

}

1. Identify the fault. (4 points)
2. If possible, identify a test case that does not execute the fault.(4 points)
3. If possible identify a test case that results in an error, but not a failure. (4 points)
4. Identify a test case that results in a failure. (4 points)
5. Given the following program
6. Identify the fault. (4 points)
7. If possible, identify a test case that does not execute the fault.(4 points)
8. If possible identify a test case that results in an error, but not a failure. (4 points)
9. Identify a test case that results in a failure. (4 points)

Answer 1

Answers:

a)fault is in loop i is incremented by 2 every time hence it is not comparing odd indices values in x which is wrong.it should be incremented by 1 very time.

for(int i=0;i<x.length();i+=1)

b) test case x={} would not execute fault because condition will fail immediately

c)test case x={1,12,8,6,5} would result in error because maximimum returned by function would be 8 and not 12 because it skips that comparision with 12

d)test case={-INT_MIN-1}

//please upvote.