check if object is equal to another object java in hashest
public class EqualsAndHashCodeExample {
public static void main(String... equalsExplanation) {
System.out.println(new Simpson("Homer", 35, 120)
.equals(new Simpson("Homer",35,120)));
System.out.println(new Simpson("Bart", 10, 120)
.equals(new Simpson("El Barto", 10, 45)));
System.out.println(new Simpson("Lisa", 54, 60)
.equals(new Object()));
}
static class Simpson {
private String name;
private int age;
private int weight;
public Simpson(String name, int age, int weight) {
this.name = name;
this.age = age;
this.weight = weight;
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
Simpson simpson = (Simpson) o;
return age == simpson.age &&
weight == simpson.weight &&
name.equals(simpson.name);
}
}
}