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Home Java

How to use If Else in Java | 100% best for beginners

March 19, 2021 - Updated on August 15, 2021
in Java
Reading Time: 3 mins read
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If Else in Java
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Contents

  • If Else in Java Tutorial
  • The if statement
  • Example code
  • Output
  • The else if statement
  • Example code
  • Output
  • The else statement
  • Example code
  • Output
  • YouTube Video

If Else in Java Tutorial

Java has the following conditional statements of If else in java

  • if is used to specify a block of code if the condition is true

  • else if is used to specify a block of code if the first condition is false

  • else is used to specify a block of code if the conditions from if and else if are false

The if statement

How is the if else in Java works? if is used to execute a block of code if the condition is true. See this example code below.

Example code

package ifelse;

import java.util.Scanner;

/**
*
* @author KENSOFT
*/
public class IfElse {

public static void main(String[] args) {
    System.out.print("Rate from 1 - 10: ");
    Scanner scan = new Scanner(System.in);
    int n = scan.nextInt();
    if(n >= 8 && n <= 10){
        System.out.println("Excellent");
    }
  }
}

That is an example of executing an if statement in Java

Output

Rate from 1 - 10: 10
Excellent

The else if statement

How the else if statement works? else if is used to execute a block of code if the first condition is false. See this example code below.

Example code

package ifelse;

import java.util.Scanner;

/**
*
* @author KENSOFT
*/
public class IfElse {

    public static void main(String[] args) {
        System.out.print("Rate from 1 - 10: ");
        Scanner scan = new Scanner(System.in);
        int n = scan.nextInt();
        if(n >= 8 && n <= 10){
            System.out.println("Excellent");
        }else if(n >= 5 && n <= 7){
            System.out.println("Very Good");
        }
    }
}

That is an example of executing an if statement with else if statement in Java

Output

Rate from 1 - 10: 7
Very Good

The else statement

How does the else statement work? else is used to execute a block of code if the condition of if and else if are false. See this example code below.

Example code

package ifelse;

import java.util.Scanner;

/**
*
* @author KENSOFT
*/
public class IfElse {

    public static void main(String[] args) {
        System.out.print("Rate from 1 - 10: ");
        Scanner scan = new Scanner(System.in);
        int n = scan.nextInt();
        if(n >= 8 && n <= 10){
            System.out.println("Excellent");
        }else if(n >= 5 && n <= 7){
            System.out.println("Very Good");
        }else if(n >= 3 && n <= 4){
            System.out.println("Good");
        }else if(n >= 1 && n <= 2){
            System.out.println("Bad");
        }else{
            System.out.println("Rating is out of scope");
        }
    }
}

Output

Rate from 1 - 10: 11
Rating is out of scope

That’s how you do If else in Java. 

If Else in Java

YouTube Video

Java If Else Statement Tutorial for beginners
Watch this video on YouTube.
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KENSOFT

KENSOFT

What’s up! Kent is my name. The name KENSOFT is derived from the words Kent and Software. My programming language of choice is Java

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