Cognizant java interview questions and answers

Cognizant java interview questions and answers

Q) Java Program to Swap two Strings Without Using Third Variable?

Source Code
==========

public class SwapTwoStr {

public static void main(String[] args) {

String str1 = "Chenna";
String str2 = "Tech";

// print Strings before swapping

// append str2 String to Str1
str1 = str1 + str2;// ChennaTech

// store initial String str1 in String str2

// store initial String str2 in String str1

// print Strings after swapping

}
}

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