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If else if in Java

Why Use Else If?

  • Sometimes we need to check multiple conditions.
  • if-else-if ladder allows checking conditions one by one.
  • Once a true condition is found, its block executes → remaining blocks are skipped.

Syntax

if (condition1) {
    // executes if condition1 is true
} else if (condition2) {
    // executes if condition2 is true
} else if (condition3) {
    // executes if condition3 is true
} else {
    // executes if all conditions are false
}

Example – Find the Greatest of Three Numbers

public class Demo {
    public static void main(String[] args) {
        int x = 8;
        int y = 7;
        int z = 9;

        if (x > y && x > z) {
            System.out.println(x);
        } else if (y > z) {
            System.out.println(y);
        } else {
            System.out.println(z);
        }
    }
}

👉 Output: 9

Flow Explanation

  1. Check if x is greater than both y and z.

    • If true → print x.

  2. Else, check if y is greater than z.

    • If true → print y.

  3. Else (remaining case) → print z.

Key Notes

  • Execution stops at the first true condition.
  • else block is optional.
  • Useful for multi-branch decision making.

If else in Java

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Why Use Else If?SyntaxExample – Find the Greatest of Three NumbersFlow ExplanationKey Notes