Les opérateurs relationnels

Contents

Symbole	Exemple	Cas où le résultat renvoit `True`
>	opérande1 > opérande2	opérande1 est strictement supérieur à opérande2
>=	opérande1 >= opérande2	opérande1 est supérieur ou égal à opérande2
<	opérande1 < opérande2	opérande1 est strictement inférieur à opérande2
<=	opérande1 <= opérande2	opérande1 est inférieur ou égal à opérande2
==	opérande1 == opérande2	opérande1 est égal à opérande2
!=	opérande1 != opérande2	opérande1 n'est pas égal à opérande2

Exemple

Code Java (Opérateurs relationnels) (48 lignes)

public class OperateursRelationnels {
    public static void main(String[] args) {
 
        //a few numbers
        int i = 37;
        int j = 42;
        int k = 42;
        System.out.println("Variable values...");
        System.out.println("    i = " + i);
        System.out.println("    j = " + j);
        System.out.println("    k = " + k);
 
        //greater than
        System.out.println("Greater than...");
        System.out.println("    i > j = " + (i > j));     //false
        System.out.println("    j > i = " + (j > i));     //true
        System.out.println("    k > j = " + (k > j));     //false, they are equal
 
        //greater than or equal to 
        System.out.println("Greater than or equal to...");
        System.out.println("    i >= j = " + (i >= j));   //false
        System.out.println("    j >= i = " + (j >= i));   //true
        System.out.println("    k >= j = " + (k >= j));   //true
 
        //less than
        System.out.println("Less than...");
        System.out.println("    i < j = " + (i < j));     //true
        System.out.println("    j < i = " + (j < i));     //false
        System.out.println("    k < j = " + (k < j));     //false
 
        //less than or equal to
        System.out.println("Less than or equal to...");
        System.out.println("    i <= j = " + (i <= j));   //true
        System.out.println("    j <= i = " + (j <= i));   //false
        System.out.println("    k <= j = " + (k <= j));   //true
 
        //equal to
        System.out.println("Equal to...");
        System.out.println("    i == j = " + (i == j));   //false
        System.out.println("    k == j = " + (k == j));   //true
 
        //not equal to
        System.out.println("Not equal to...");
        System.out.println("    i != j = " + (i != j));   //true
        System.out.println("    k != j = " + (k != j));   //false
 
    }
}

Retourner au début du code

Ce qui donne en sortie :

Variable values...
i = 37
j = 42
k = 42
Greater than...
i > j = false
j > i = true
k > j = false
Greater than or equal to...
i >= j = false
j >= i = true
k >= j = true
Less than...
i < j = true
j < i = false
k < j = false
Less than or equal to...
i <= j = true
j <= i = false
k <= j = true
Equal to...
i == j = false
k == j = true
Not equal to...
i != j = true
k != j = false

English translation

You have asked to visit this site in English. For now, only the interface is translated, but not all the content yet.

If you want to help me in translations, your contribution is welcome. All you need to do is register on the site, and send me a message asking me to add you to the group of translators, which will give you the opportunity to translate the pages you want. A link at the bottom of each translated page indicates that you are the translator, and has a link to your profile.

Thank you in advance.

Document created the 24/04/2005, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/programmation-operateur-relationnel.html

The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.