Parameter passing for Java methods

There is only one parameter pass for methods in Java: Value passing
public class Swapmethod {
/**
* Exchange method
* @param a
* @param b
*/
public static void Swap (int a, int b) {
int temp;
Temp =a;
A = b;
b = temp;
System.out.println ("A after Exchange" = "+a+"; b = "+b");
}
public static void Main (string[] args) {
int a = 1;
int b = 2;
Swap (A, b);
System.out.println ("a =" +a+ "after the exchange ends; b = "+b");

}

}

Output result: A = 2 after exchange; b = 1
After the exchange ends a = 1; b = 2