Comparing strings in java

Question

String string1 = \"Hi there\";
String string2 = \"Hi\";
String string3 = \"Hi\";

System.out.println(string1.substring(0, string2.length()) == string2); //1
System.o         


        

Answer 1

The == operator is comparing 2 references to the same string for equality.

The String class has two methods that you should use to compare two strings for equality:

String1.equals(String2);

Returns true if String1 and String2 are identical (including the case of the letters).

If you don't care about the case then you can use:

String1.equalsIgnoreCase(String2);

This returns true if String1 and String2 are equal regardless of the case (obviously).