Which of the following is the loop condition in the following for loop?

for (i = 1; i < 20; i++)

System.out.println("Hello World");

System.out.println("!");

		i = 1;
		i < 20;
		i++
		System.out.println("Hello World");

What is the value of counter after the following statements executes?

int counter = 0;

while (counter <= 50) {

counter = counter + 1;

}

48

50

51

53

Suppose that x is an int variable. Which of the following expression always evaluates to true?

		(x > 0) || ( x <= 0)
		(x > 0) || (x == 0)
		(x > 0) && ( x <= 0)
		(x > 0) && (x == 0)

Suppose that x, y and z are int variables. The expression x(y+z) in Java is written as ____.

		x * y + z
		x * (y + z)
		y + x * z
		None of these