Why sometimes, "==" relational operator cannot be used in place of .equals() method for comparing objects?
126
How do I compare strings in Java?
93559
use "if" rather than "whether" when the object clause is negative?
152733
How to simplify a null-safe compareTo() implementation?
120808
Why AbstractCollection does not implement equals()?
109567
How does operator  work when comparing two strings?
599
Is Java "pass-by-reference" or "pass-by-value"?
24759
How do I use the conditional (ternary) operator?
145046
comparing float/double values using == operator
133999
Does variables' order matter when doing == and === comparisons?
152654
Comparing references in Java
95798
Compare object instances for equality by their attributes
74142
Why isn't `method=` treated the same as any other method?
147679
Java Integer compareTo() - why use comparison vs. subtraction?
99302
What is the diffrence between isEqualToString and operator == in Objective C?
65377
Trouble over riding and using equals method in java
150230
Is there a C# case insensitive equals operator?
132543
Can I use chained comparison operator syntax?