instanceが同一か確認。equals method

newした２つのinstanceを比較する

Sample.java

public class Sample {
    int i;
}

    public static void main(String[] args) {
        Sample s1 = new Sample();
        Sample s2 = new Sample();
        System.out.println(s1.equals(s2));
        s1 = s2;
        System.out.println(s1.equals(s2));
    }

false
true