java overload overload

test.day01 Package; 

public class overload2 { 
    public static void main (String [] args) { 
        System.out.println (SUM (30000000L, 30000000L)); 
    } 
    // reload only the corresponding parameter passing 
    // the return value independent 
    SUM static Boolean public (byte A, B byte) { 
        System.out.println ( "two byte"); 
        return A == B; 
    } 

    public static Boolean SUM (A Short, Short UI) { 
        System.out.println ( "two Short"); 
        return == A UI; 
    } 

    public static Boolean SUM (A int, int B) { 
        System.out.println ( "two int"); 
        return A == B; 
    } 

    public static Boolean SUM (double a, double b) {
        System.out.println("两个double");
        return a == b;
    }

    public static boolean sum(long a, long b) {
        return a == b;
    }
}