== or equals?

Core exercise

Complete the two methods: avecEgalEgal compares with ==, avecEquals compares with equals. Run the main: the two strings contain the same text, and yet the two methods do not give the same answer. Explain why in a comment.

A workshop goes here: you write and run code in it. It requires JavaScript.

Starting code

Exercices.java

public class Exercices {

    public static void main(String[] args) {
        String a = new String("java");
        String b = new String("java");
        System.out.println("avec ==     : " + avecEgalEgal(a, b));
        System.out.println("avec equals : " + avecEquals(a, b));
        // TODO : expliquer la difference ici, en commentaire
    }

    public static boolean avecEgalEgal(String a, String b) {
        // TODO : comparer avec ==
        return false;
    }

    public static boolean avecEquals(String a, String b) {
        // TODO : comparer avec equals
        return false;
    }
}

The core exercise is validated in the workshop, which requires JavaScript.

Hint 1

== asks “is it the same memory cell?”. equals asks “is it the same contents?”. Identical string literals are shared by Java, but new String("java") does create a distinct object.