Answer Posted / shyam sundar baishya

How to swap two String values without using a
third variable?

In Java::
=========
String s1 = "Shyam Sundar Baishya" ;
String s2 ="Dilip Kumar";
System.out.println("Before swapping ............");
System.out.println("s3 == "+s1);
System.out.println("s4 == "+s2);
s1= s1+s2;
System.out.println("....................");
System.out.println("After swapping ............");
s2 = s1.substring(0,(s1.length()-s2.length()));
s1 = s1.substring(s2.length(),(s1.length()));
System.out.println("s3 == "+ s1);
System.out.println("s4 == "+ s2);

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