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    Java Program to swap two string variables without using third or temp variable.

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    Java Program to swap two string variables without using third or temp variable.

    In this example, we will create a java program to swap two strings without using a third variable.

    Program:
    
public class Main     
{    
    public static void main(String[] args) 
	{    
        String str1 = "Hello ", str2 = "Jerry.. ";    
         System.out.println("Strings before swapping: " + str1 + " " + str2);    
        
        str1 = str1 + str2;    
        str2 = str1.substring(0, (str1.length() - str2.length()));    
        str1 = str1.substring(str2.length());    
            
        System.out.println("Strings after swapping: " + str1 + " " + str2);    
    }    
}
    Output
    Strings before swapping: Hello Jerry..
    Strings after swapping: Jerry.. Hello
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