Java: == might work the same as equals()

It’s a rule that == is used to compare references, not values. To compare values for equality equals() method should be used.
However, as of Java 5, you can also use == to check if two objects’ values are the same… But it works only for the following wrapper objects, if their primitive counterparts’ values are the same:

  • Boolean
  • Byte
  • Character for values: u0000 (0) ÷ u007f (127)
  • Byte and Integer for values: -128 ÷ 127
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