.equals() is when comparing strings. Like say, var total = 10; then if(textFeild.getText().equals("10")) do something... or if(string1.equals(string2)) do something... equals() is used on strings.
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Joined: Apr 21, 2002
since java is case sensitive, it makes sense to test for multiple varitations of an input. ex: prompt: Enter Yes to continue. User input may be: yes, or Yes, or YES...or a few other ways. Instead of testing for each different variation, you can use equalsIgnoreCase(). So: prompt: Enter yes to continue. if(textfield.getText().equalsIgnoreCase(string)) do something... Just thought I'd add that, since up until recently I didn't know about it.
Simply put, you use == (1)for testing for equality of value of primitives, or (2)for testing whether two object references point to the same location in memory. On the other hand, the equals() method applies whatever test for equality the programmer provides. For instance, in java.lang.String, equals() tests whether two String objects have the same content. However, in java.lang.Object, equals() actually is the same as == for objects.
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