Thread: JAVA - Swap two string in a method without built-in functions

Hello,

I want to swap two string in JAVA without built-in function like this.
How can I fix it?

Thanks

import java.util.*;
 
public class MainClass {
 
 
	public static void Swap(String myString, String yourString)
	{
		String S = myString;
		myString = yourString;
		yourString = S;
	}	public static void main(String[] args) {
 
		Scanner S = new Scanner(System.in);
		String Str = S.nextLine();
		String Str2 = S.nextLine();
		Swap(Str,Str2);
		System.out.printf("My String %s \n",Str);
		System.out.printf("Your String %s \n",Str2);
 
 
	}
 
}

Originally Posted by Norm

swap is not a built-in method.

swap(str,str2);

Note: the swap method will NOT change the values of str or str2

Naming conventions say variable names and method names should start with a lower-case letter.

Yes, swap is not built-in method. now how can I fix it? because in JAVA we don't have reference type and String is immutable.
How can I swap two string in that method?

Thanks