Why both are not equal the output is match unmatch how?

Question

public class demomain {

public static void main(String[] args) {
Integer n1 = 50;
Integer n2 = 50;
Integer n3 = 200;
Integer n4 = 200;
if (n1 == n2)
System.out.println("match");
else
System.out.println("unmatch");

if (n3 == n4)
System.out.println("match");
else
System.out.println("unmatch");

}

}

Answer 1

https://www.sololearn.com/Discuss/2123471/?ref=app

Integer instances, having value in range -128 up to 127 are cached and stored in same reference when their values are equal. 200 is out of the range for cached (pooled) instances.