Equals () and "= ="

For Boolean, Character, Byte, short, Integer, Long, Float, Double, and string: = = is the comparison address, equals () is the comparison content. These Java-packaged classes are overloaded.

Equals (): In object, it is used to compare memory addresses, but in string and in the above mentioned classes, is the comparison of content, even if it is a different address, as long as the content is consistent, return true;

= =: Where are the comparison addresses (except for the Java self---int Type a = 3; int b = 3; Here A and B, the addresses are different, but they are self-bringing types, directly comparing values, still returning true).

Equals () and "= ="