Why is String a not equal to String b?!!Please read the description and let me know.

Question

//I made this program to test the if statement
import java.util.Scanner ;
public class Program
{
public static void main(String[] args) {
String a ="hi";
Scanner x =new Scanner (System.in);
String b =x.nextLine();
if (a==b){System.out.println("Yes");
}
else {System.out.println ("No");}

}
}
//I input "hi" as the value of b. But the output was "No".Why? I did not put the quotes when I input the value of b. Please help me understand this. I will be highly grateful.

Answer 1

Try using a.equals(b) instead of a==b.
In non-primitive types (like String), equals checks if the properties of two objects are equal (which is what you want), but == will only return true if a and b refer to THE SAME String object. But in your case, a and b are two separate, independent objects, so == will always be false, even if the properties of the two objects are equal.

Answer 2

Use a.equals(b) instead of a==b...

Answer 3

Thanks a lot.