$show=/label

Java Program to Check Whether a Number is Positive or Negative

SHARE:

A quick practical java program to check whether a given number is a positive or negative value

1. Introduction


In this programming tutorial, We will learn how to check the given number is a positive or negative value. This can be done using if else condition and with '<', '>' operators.

If-else Statement in java examples.

Java Program to Check Whether a Number is Positive or Negative




2. Example Program To Check if a Number is Positive or Negative using if-else

Following is a simple example using if and else statements.

package com.javaprogramto.w3schools.engineering.programs;

import java.util.Scanner;

/**
 * 
 * Java Program to Check Whether a Number is Positive or Negative
 * 
 * @author JavaProgramTo.com
 */
public class CheckNumberPositiveNegative {

    public static void main(String[] args) {
    
        System.out.println("Enter a int value : ");
        Scanner s = new Scanner(System.in);
        int intValue = s.nextInt();
        
        if(intValue > 0 ) {
            System.out.println(intValue+" is a positive number");
        } else if(intValue < 0){
            System.out.println(intValue+" is a negative number");
        } else {
            System.out.println(intValue+" is not a positive or negative number");
        }
        
        System.out.println("Enter a double value : ");
        double doubleValue = s.nextDouble();
        
        if(doubleValue > 0 ) {
            System.out.println(doubleValue+" is a positive number");
        } else if(doubleValue < 0){
            System.out.println(doubleValue+" is a negative number");
        } else {
            System.out.println(doubleValue+" is not a positive or negative number");
        }

    }

}

Output:

Enter a int value : 100
100 is a positive number
Enter a double value : -100.09
-100.09 is a negative number

In this program, we are checking positive or negative for int and double values. If condition expression is true then it is positive value else checking for negative value and the final else means the number is 0.

3. Possible Exceptions


If an invalid number is given like "-12-.23" then will get the run time exception saying InputMismatchException.


Enter a int value : 15
15 is a positive number
Enter a double value : -12-.23
Exception in thread "main" java.util.InputMismatchException
    at java.util.Scanner.throwFor(Scanner.java:864)
    at java.util.Scanner.next(Scanner.java:1485)
    at java.util.Scanner.nextDouble(Scanner.java:2413)
    at com.javaprogramto.w3schools.engineering.programs.CheckNumberPositiveNegative.main(CheckNumberPositiveNegative.java:28)


Adding two numbers in java
Adding three numbers

4. Conclusion


In this article, We have seen how to check the given int or double value is a positive or negative number using the if-else statement.


COMMENTS

BLOGGER

About Us

Author: Venkatesh - I love to learn and share the technical stuff.
Name

accumulo,1,ActiveMQ,2,Adsense,1,API,31,ArrayList,16,Arrays,2,Bean Creation,3,Bean Scopes,1,BiConsumer,1,Blogger Tips,1,Books,1,C Programming,1,Collection,4,Collections,20,Collector,1,Command Line,1,Compile Errors,1,Configurations,7,Constants,1,Control Statements,8,Conversions,5,Core Java,71,Corona India,1,Create,2,CSS,1,Date,2,Date Time API,3,Dictionary,1,Difference,1,Download,1,Eclipse,2,Efficiently,1,Error,1,Errors,1,Exception,1,Exceptions,2,Fast,1,Files,9,Float,1,Font,1,For examples,1,For loop examples,1,For Loop in Java,1,Form,1,Freshers,1,Function,3,Functional Interface,2,Garbage Collector,1,Generics,4,Git,4,Grant,1,Grep,1,HashMap,1,HTML,2,HttpClient,2,Immutable,1,Inner for loops,1,Installation,1,Interview Questions,5,Iterate,2,Jackson API,3,Java,28,Java 10,1,Java 11,5,Java 12,5,Java 13,2,Java 14,2,java 5 For loop,1,Java 8,47,Java 9,1,Java Design Patterns,1,Java Files,1,Java for loop,1,Java Program,2,Java Programs,65,java.lang,5,java.util. function,1,jQuery,1,Kotlin,10,Kotlin Programs,6,Lambda,1,lang,29,Leap Year,1,live updates,1,Math,1,Maven,1,Method References,1,Mockito,1,MongoDB,3,Nested for loop,1,Nested for loop examples,1,New Features,1,Operations,1,Optional,4,Oracle,5,Oracle 18C,1,Partition,1,Patterns,1,Programs,1,Property,1,Python,2,Quarkus,1,Read,1,Real Time,1,Recursion,2,Remove,2,Rest API,1,Schedules,1,Serialization,1,Servlet,1,Softwares,1,Sorting Techniques,8,Spring,2,Spring Boot,23,Spring Email,1,Spring MVC,1,Stream,2,Streams,11,String,48,String Programs,8,String Revese,1,Swing,1,System,1,Tags,1,Threads,7,Tomcat,1,Tomcat 8,1,Troubleshoot,16,Unix,2,Updates,3,util,5,While Loop,1,
ltr
item
JavaProgramTo.com: Java Program to Check Whether a Number is Positive or Negative
Java Program to Check Whether a Number is Positive or Negative
A quick practical java program to check whether a given number is a positive or negative value
https://1.bp.blogspot.com/-nx9zFHa-pfU/XkGCi2iSg-I/AAAAAAAACQk/r-owmYQozr8XOUwAKwAaDAXIxbwjrtihACLcBGAsYHQ/s640/Java%2BProgram%2Bto%2BCheck%2BWhether%2Ba%2BNumber%2Bis%2BPositive%2Bor%2BNegative.png
https://1.bp.blogspot.com/-nx9zFHa-pfU/XkGCi2iSg-I/AAAAAAAACQk/r-owmYQozr8XOUwAKwAaDAXIxbwjrtihACLcBGAsYHQ/s72-c/Java%2BProgram%2Bto%2BCheck%2BWhether%2Ba%2BNumber%2Bis%2BPositive%2Bor%2BNegative.png
JavaProgramTo.com
https://www.javaprogramto.com/2020/02/java-check-number-positive-negative.html
https://www.javaprogramto.com/
https://www.javaprogramto.com/
https://www.javaprogramto.com/2020/02/java-check-number-positive-negative.html
true
3124782013468838591
UTF-8
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS PREMIUM CONTENT IS LOCKED STEP 1: Share to a social network STEP 2: Click the link on your social network Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy Table of Content