Loops Flashcard

Front

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

Back

10

Front

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

Back

4

Front

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

Back

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

Front

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);

Back

10

Front

Which of the following loops prints "Welcome to Java" 10 times? Options: 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");
}.

Back

for (int count = 1; count <= 10; count++) {
 System.out.println("Welcome to Java");

Front

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

Back

1 3 5 7 9

Front

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

Back

45

Front

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);

Back

100

Front

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

Back

n - 1

Front

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

Back

3 0