How to judge whether two Long type data are equal

@Test
public void test1Long() {
Long a=(long) 19257;
Long b=(long) 19257;
System.err.println("The result of a==b is "+(a==b));
System. err.println("a.longValue()==b.longValue() results in "+(a.longValue()==b.longValue()));

}

The result of running the above program is:

                The result of a==b is false

                The result of a.longValue()==b.longValue() is true

reason:

== in primitive data types compares the value of two primitive data types for equality

 == In the reference data type, the comparison is whether the referenced objects are equal, that is, whether the same object is referenced, and the comparison is the address