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String is immutable.it is true
String can be change to mutable How?
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Answer Posted / java
String s = "PROJECT";
String s2 = s.toLowerCase();
System.out.println(s.equals("PROJECT")); // Prints true
System.out.println(s.equals(s2)); // Prints false
In comparison, consider what would happen if Strings were mutable.
MutableString ms = "PROJECT";
MutableString ms2 = ms.toLowerCase();
System.out.println(ms.equals("PROJECT")); // Prints false
System.out.println(ms.equals(ms2)); // Prints true
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