If statement in Java - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

What is the output of this Java if statement code?

Consider the following Java code snippet. What will it print when run?

Java

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

A Compilation error

B 5 or less

C Greater than 5

D No output

💡 Hint

Check the condition x > 5 and what it means for x = 10.

Since x is 10, which is greater than 5, the if condition is true, so it prints "Greater than 5".

❓ Predict Output

intermediate

What will this nested if-else print?

Look at this Java code. What is the output?

Java

int a = 3;
int b = 7;
if (a > 5) {
    System.out.println("A is big");
} else if (b > 5) {
    System.out.println("B is big");
} else {
    System.out.println("Neither is big");
}

A Neither is big

B B is big

C A is big

D Compilation error

💡 Hint

Check the values of a and b and the order of conditions.

a is 3 (not > 5), so first if is false. b is 7 (> 5), so else if is true, printing "B is big".

❓ Predict Output

advanced

What is the output of this if statement with boolean logic?

What does this Java code print?

Java

boolean flag = false;
int num = 8;
if (!flag && num < 10) {
    System.out.println("Condition met");
} else {
    System.out.println("Condition not met");
}

A No output

B Condition not met

C Compilation error

D Condition met

💡 Hint

Remember !flag means flag is false, so !flag is true.

flag is false, so !flag is true. num is 8, which is less than 10. Both conditions true, so prints "Condition met".

❓ Predict Output

advanced

What error does this Java if statement code cause?

What happens when you run this code?

Java

int x = 5;
if (x == 5) {
    System.out.println("x is five");
}

A SyntaxError: missing semicolon

B Prints: x is five

C RuntimeException

D No output

💡 Hint

Check the line endings carefully.

The first line is missing a semicolon at the end, causing a compilation syntax error.

❓ Predict Output

expert

What is the value of variable result after this if-else code?

After running this Java code, what is the value of result?

Java

int a = 4;
int b = 9;
int result;
if (a > b) {
    result = a - b;
} else if (a == b) {
    result = a + b;
} else {
    result = b - a;
}

A 5

B -5

C 13

D 0

💡 Hint

Compare a and b and see which condition is true.

a is 4, b is 9. a > b is false, a == b is false, so else runs: result = b - a = 9 - 4 = 5.