The difference between = = and equal () in Java

= = and equal () are used to determine whether the two variables are equal.

(1) If the two variables are basic type variables, and are numeric (not necessarily the same data type), as long as the value is the same, will return true;

(2) If two variables are reference variables, = = only returns True if they point to the same object;

(3) The equal compares two strings, and returns True if the characters of the two strings correspond to equal properties.

int It=65;float f1=65.0f;//it==f1 is Truechar ch= ' A ';//it==ch is truestring str1 = new String ("Hello"); String str2 = new String ("Hello");//str1==str2 is false. They point to not the same object Str1.equal (STR2) is true

Note : The equal () method can be overridden.

The difference between = = and equal () in Java