Java Control Statements MCQ - Multiple Choice Questions And Answers

Q. What is the syntax for an if statement in Java?

A. if (condition) { // code block }
B. if(condition) // code block
C. if [condition] { // code block }
D. if { // code block }
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Q. Which keyword is used to exit a for loop in Java?

A. break
B. exit
C. continue
D. return
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Q. Which of the following is NOT a control statement in Java?

A. if-else
B. switch-case
C. for-loop
D. do-while
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Q. What is the purpose of the switch statement in Java?

A. To compare two values
B. To iterate over a collection
C. To execute different blocks of code based on different values
D. To perform arithmetic operations
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Q. How many conditions can be tested using a single if statement in Java?

A. 0
B. 1
C. 2
D. Unlimited
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Q. What is the purpose of the continue statement in Java?

A. To skip the current iteration of a loop and continue with the next iteration
B. To terminate a loop and exit the current code block
C. To check a condition and execute different code blocks
D. To execute a block of code repeatedly
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Q. What is the syntax for a while loop in Java?

A. while (condition) { // code block }
B. while (condition) // code block
C. while [condition] { // code block }
D. while { // code block }
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Q. What is the purpose of the default case in a switch statement in Java?

A. To compare two values
B. To iterate over a collection
C. To execute a block of code when no other cases match the tested value
D. To perform arithmetic operations
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Q. What is the purpose of the Predicate functional interface in Java 8?

A. To produce results
B. To consume values
C. To filter elements based on a condition
D. To transform values
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Q. Which keyword is used to exit a do-while loop in Java?

A. break
B. exit
C. continue
D. return
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Q. Which of the following code snippets demonstrates the correct usage of a for loop in Java?

A.

for (int i = 0; i < 10; i++) {
    System.out.println(i);
}

B.

for (int i = 1; i <= 10; i++) {
    System.out.println(i);
}

C.

for (int i = 10; i > 0; i--) {
    System.out.println(i);
}

D.

for (int i = 1; i < 10; i+=2) {
    System.out.println(i);
}

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Q. What is the output of the following code snippet?

int x = 5;
if (x > 10) {
    System.out.println("x is greater than 10");
} else if (x > 5) {
    System.out.println("x is greater than 5");
} else {
    System.out.println("x is less than or equal to 5");
}

A. x is greater than 10
B. x is greater than 5
C. x is less than or equal to 5
D. The code does not compile
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Q. Which of the following code snippets uses a while loop to add numbers from 1 to 10 and prints the sum?

A.

int sum = 0;
int i = 1;
while (i <= 10) {
    sum += i;
    i++;
}
System.out.println(sum);

B.

int sum = 0;
for (int i = 1; i <= 10; i++) {
    sum += i;
}
System.out.println(sum);

C.

int sum = 0;
int i = 10;
while (i >= 1) {
    sum += i;
    i--;
}
System.out.println(sum);

D.

int sum = 0;
int i = 0;
while (i < 10) {
    sum += i;
    i++;
}
System.out.println(sum);

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Q. What is the output of the following code snippet?

int x = 10;
while (x > 0) {
    if (x % 2 == 0) {
        System.out.println(x);
    }
    x--;
}

A. 10, 8, 6, 4, 2
B. 9, 7, 5, 3, 1
C. 10, 9, 8, 7, 6, 5, 4, 3, 2, 1
D. The code does not compile
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Q. Which of the following code snippets demonstrates the correct usage of a do-while loop in Java?

A.

int i = 0;
do {
    System.out.println(i);
    i++;
} while (i < 5);

B.

int i = 0;
while (i < 5) {
    System.out.println(i);
    i++;
}

C.

int i = 5;
do {
    System.out.println(i);
    i--;
} while (i > 0);

D.

int i = 0;
do {
    System.out.println(i);
} while (i++ < 5);

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Q. What is the output of the following code snippet?

for (int i = 1; i <= 5; i++) {
    if (i == 3) {
        continue;
    }
    System.out.println(i);
}

A. 1, 2, 3, 4, 5
B. 1, 2, 4, 5
C. 1, 2, 4
D. 1, 2, 3, 3, 4, 5
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Q. Which of the following code snippets demonstrates the correct usage of a break statement?

A.

for (int i = 1; i <= 5; i++) {
    if (i == 3) {
        break;
    }
    System.out.println(i);
}

B.

while (true) {
    System.out.println("Hello, World!");
    break;
}

C.

for (int i = 1; i <= 5; i++) {
    if (i == 3) {
        continue;
    }
    System.out.println(i);
    break;
}

D.

int x = 1;
do {
    System.out.println(x);
    x++;
    if (x == 3) {
        break;
    }
} while (x <= 5);

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Q. What is the output of the following code snippet?

for (int i = 0; i < 5; i++) {
    if (i == 2) {
        break;
    }
    System.out.println(i);
}

A. 0, 1, 2, 3, 4
B. 0, 1, 3, 4
C. 0, 1, 3, 4, 5
D. 0, 1, 2
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Q. Which of the following code snippets demonstrates the correct usage of a switch statement?

A.

int day = 1;
switch (day) {
    case 1:
        System.out.println("Monday");
        break;
    case 2:
        System.out.println("Tuesday");
        break;
    case 3:
        System.out.println("Wednesday");
        break;
    default:
        System.out.println("Invalid day");
}

B.

String day = "MON";
switch (day) {
    case "MON":
        System.out.println("Monday");
        break;
    case "TUE":
        System.out.println("Tuesday");
        break;
    case "WED":
        System.out.println("Wednesday");
        break;
    default:
        System.out.println("Invalid day");
}

C.

int number = 5;
switch (number) {
    case 1:
        System.out.println("One");
        break;
    case 2:
        System.out.println("Two");
        break;
    case 3:
        System.out.println("Three");
        break;
    default:
        System.out.println("Invalid number");
}

D.

boolean condition = true;
switch (condition) {
    case true:
        System.out.println("True");
        break;
    case false:
        System.out.println("False");
        break;
    default:
        System.out.println("Invalid condition");
}

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Q. What is the output of the following code snippet?

int x = 2;
switch (x) {
    case 1:
        System.out.println("One");
        break;
    case 2:
        System.out.println("Two");
    case 3:
        System.out.println("Three");
        break;
    default:
        System.out.println("Invalid number");
}

A. "Two"
B. "Two", "Three"
C. "One", "Two"
D. "Two", "Three", "Invalid number"
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