operators - == and .equals() in java -



operators - == and .equals() in java -

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how compare strings in java? 23 answers java string.equals versus == [duplicate] 20 answers

on reading many articles figure out == compares if 2 operands referring same object.

how work primitive info types.

does compare values of operand?

does == work differently primitive info types , classes ?

kindly clarify

the “==” operator checking see if string objects (obj1 , obj2) refer exact same memory location. in other words, if both obj1 , obj2 different names same object “==” operator homecoming true when comparing 2 objects.

the equals() method behaves same “==” operator – meaning checks see if both objects reference same place in memory. but, equals method meant compare contents of 2 objects, , not location in memory. means if phone call equals() method compare 2 string objects, long actual sequence of characters equal, both objects considered equal.

primitive info types can not compared using equal() not objects. int, char can compared using == operator.

but when compare float , double may different results due binary conversion in machine. when comparing float values, consistent values, including special float.nan value, float.compare() best option. same applies double values.

java operators

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