Loops Quiz

How many times will the following code print "Welcome to Java"?
int count = 0;
while (count < 10) {
 System.out.println("Welcome to Java");
 count++;
}

• 8
• 9
• 10
• 0

What is the output of the following code?
int x = 0;
while (x < 4) {
 x = x + 1;
}
System.out.println("x is " + x);

• 0
• 1
• 3
• 4

 Analyze the following code.
int count = 0;
while (count < 100) {
 // Point A
 System.out.println("Welcome to Java!");
 count++;
 // Point B
}
 // Point C

• count < 100 is always true at Point B 
•  count < 100 is always false at Point B
•  count < 100 is always true at Point A  and count < 100 is always false at Point C
•  count < 100 is always true at Point Coint C

How many times will the following code print "Welcome to Java"?
int count = 0;
do {
 System.out.println("Welcome to Java");
 count++;
} while (count < 10);

• 0
• 9
• 8
• 10

Which of the following loops prints "Welcome to Java" 10 times?

• A:
  for (int count = 1; count <= 10; count++) {
   System.out.println("Welcome to Java");
• for (int count = 2; count < 10; count++) {
   System.out.println("Welcome to Java");
  }
• for (int count = 1; count < 10; count++) {
   System.out.println("Welcome to Java");
  }
• for (int count = 0; count <= 10; count++) {
   System.out.println("Welcome to Java");
  }

The following loop displays _______________.
for (int i = 1; i <= 10; i++) {
 System.out.print(i + " ");
 i++;
}

• 1 2 3 4 5 6 7 8 9
• 1 2 3 4 5 6 7 8 9 10
• 1 2 3 4 5 
• 1 3 5 7 9

What is the output for y?
int y = 0;
for (int i = 0; i<10; ++i) {
 y += i;
}
System.out.println(y);

• 1
• 36
• 45
• 9

How many times is the println statement executed?
for (int i = 0; i < 10; i++) 
 for (int j = 0; j < 10; j++)
 System.out.println(i * j);

• 100
• 10
• 45
• 20

What is the number of iterations in the following loop:
 for (int i = 1; i < n; i++) {
 // iteration
 }

• 2*n
  
•  n
• n - 1
  
• n + 1

What will be displayed when the following code is executed?
 int number = 6;
 while (number > 0) {
 number -= 3;
 System.out.print(number + " ");
 }

• 6,3,0
• 6,3
• 3,0
• 0