Compile and run two variable value exchange methods

1. Use different or running methods

With the data defined above, you can use the code

A = A ^ B; // execution variable interchange B = B ^ A; A = A ^ B; System. out. println ("A =" + A + "\ tB =" + B );

Use an exclusive or to exchange two values of A and B;

From the input value to the exchange value, the detailed code is as follows:

Package com. lixiyu; import java. util. required; public class VariableExchange {public static void main (String [] args) {using A = new using (System. in); System. out. println ("Enter the value of variable A:"); Long line =. nextLong (); records B = new records (System. in); System. out. println ("Enter the value of variable B:"); Long line1 = B. nextLong (); System. out. println ("A =" + line); System. out. println ("B =" + line1); System. out. println ("convert values"); line = line ^ line1; line1 = line1 ^ line; line = line ^ line1; System. out. println ("A =" + line + "\ tB =" + line1 );}}

Note that this method is suitable for numeric type. Use Long line = A. nextLong () instead of String.

2. Define a third-party variable for exchange

Implementation using the assignment method principle

For example, to implement A and B interchange: Define A variable C, C = A; A = B; B = C;

Package com. lixiyu; import java. util. required; public class VariableExchange {public static void main (String [] args) {String line2; required A = new feature (System. in); System. out. println ("Enter the value of variable A:"); String line =. nextLine (); records B = new records (System. in); System. out. println ("Enter the value of variable B:"); String line1 = B. nextLine (); System. out. println ("A =" + line); System. out. println ("B =" + line1); System. out. println ("execute conversion"); line2 = line; line = line1; line1 = line2; System. out. println ("A =" + line + "\ tB =" + line1 );}}

Compile and run successfully. This method is not only applicable to Long type but also other types, such as String type)

Other methods will be used later.

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