Consider the following code. int x = 0; while (x < 5) { System.out.print(x + \"

Question

Consider the following code.

   int x = 0;

   while (x < 5) {

      System.out.print(x + " ");

      x++;

   }

   System.out.println(x);

Suppose the statement x++; is replaced. What will be printed for each of the following replacements?

1.x--;

2.x += 2;

3.x += 3;

4.x += x + 1;

Answer Choices

A. 0 3 6

B. results in an infinite loop

C. 0 1 3 7

D. 0 2 4 6

Second Part

How do you declare a Random variable and assign a new Random object to the variable?

A. new Random(r);

B. r = new Random( );

C. Random r;

D. Random r = new Random( );

E. Random r = Random.new( );

Explanation / Answer

Answers:

1.x--; will lead to B. results in an infinite loop

2.x += 2; will print D. 0 2 4 6

3.x += 3; will print A. 0 3 6

4.x += x + 1; will print C. 0 1 3 7

How do you declare a Random variable and assign a new Random object to the variable?

Answer: D. Random r = new Random( );

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