How can I add or use emojis in my java program?

Question

I'm a beginner in java, and i want to make a program which returns an emoji when the user types the text version of it. When I use string for emojis, it says "no output".
For example:
If the input is ":D" then the expected output is "😀". Here's the code:
import java.util.*;
public class Emojis{
public static void main(String [] args){
String emoji = "😀";
Scanner obj1 = new Scanner(System.in);
String in = obj1.next();
if (in == ":D"){
System.out.println(emoji);
}
}
}
Please let me know if there are any mistakes in my code😊

Answer 1

Thank you😊

Answer 2

Search for emoji Unicode

Answer 3

hsg^÷_