These are trick questions read them carefully #1 Analyze the following code. dou

Question

These are trick questions read them carefully

#1 Analyze the following code.

double sum = 0;

double d;

for (d = 0; d < 10; d = d + 0.1 )

{

              sum = sum + d;

}

   a.The program has a syntax error because the semicolons in the for loop are in the wrong place.

#2 What is y after the following for loop statement is executed?

int y = 0;

for (int i=0; i < 10; i ++)

{

   y ++;  

}

   a. 9

#3 Array arr is declared and initialized in the following line of code:

                                                int [ ] arr = {10, 7, 3, 5, 9};

What is arr[3] - arr[1]?

#4 Which of the following is a valid array declaration and initialization?

a.     char [ ] charArray;

        charArray = new char[26];

b.     int [ ] words;

        words = new words[10];

c.     char [ ] charArray;

        charArray = 15;

d.     double [3] nums;

#5 Consider the following code fragment:

int [ ] list;

list = new int[10];

for (int i = 0; i <= 10; i = i + 1)

{

list[i] = 0;

}

Which of the following statements is true?

a.The loop body will execute 9 times

#6 Assume the declaration of the method xMethod is as follows. This means that xMethod is sent one object that is an array of double values.

    public static void xMethod(double [ ] a);

           Which of the following could be used to call xMethod?

        a.     xMethod(5.7);

       

       b.     xMethod(

b.The program has a syntax error because the control variable in the for loop cannot be double.

Explanation / Answer

1) d

2) a

3) c

4) a

5) d

6) d

7) a

8) a

9) a

10) b

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