Java Scanner If Statement [duplicate]

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• How do I compare strings in Java? 23 answers

I don't know why this isn't working. Thanks very much.

public String name;

public static void main(String[] args) {

    Scanner scanner = new Scanner(System.in);

    System.out.println("Enter your name....");
    String input = scanner.next();

    if (input == "judy") {
        System.out.println("Hello judy, its so nice to have you here");
    }

When I enter judy, it doesn't print "Hello....". Why?