What is the ‘if’ statement in Java and how to use it?

An if statement consists of a Boolean expression followed by one or more statements.

Syntax

Following is the syntax of an if statement −

if(Boolean_expression) {
   // Statements will execute if the Boolean expression is true
}

If the Boolean expression evaluates to true, then the block of code inside the if statement will be executed. If not, the first set of code after the end of the if statement (after the closing curly brace) will be executed.

Example

public class Test {
   public static void main(String args[]) {
      int x = 10;
      if( x < 20 ) {
         System.out.print("This is if statement");
      }
   }
}

Output

This is if statement.

Ali

Updated on 25-Feb-2020 09:47:19

• Related Questions & Answers
• What is the ‘if else’ statement in Java and how to use it?
• What is the ‘nested if’ statement in Java and how to use it?
• What is the ‘if...else if...else’ statement in Java and how to use it?
• What is a continue statement in Java and how to use it?
• What is a break statement in Java and how to use it?
• What is a switch case statement in Java and how to use it?
• What is #if DEBUG and How to use it in C#?
• What is method hiding in Java and how to use it?
• What is the type conversion operator ( ) in Java and how to use it?
• What is SignalR and how to use it?
• How to use nested if statement in Python?
• What is the if...else statement in JavaScript?
• What is if statement in JavaScript?
• What is the FlatList component and how to use it in React Native?
• What is the SectionList component and how to use it in React Native?