单选题

执行下列程序的输出结果为（ ） p...

Question

执行下列程序的输出结果为（      ）

public class Test {
    public static void main(String[] args) {
         String s1 = "HelloWorld"
         String s2 = new String("HelloWorld")
         if (s1 == s2) {
             System.out.println("s1 == s2")
         } else {
             System.out.println("s1 != s2")
         }
         if (s1.equals(s2)) {
             System.out.println("s1 equals s2")
         } else {
             System.out.println("s1 not equals s2")
         }
     }
 }

A. s1 == s2
s1 not equals s2

B. s1 == s2
s1 equals s2

C. s1 != s2
s1 not equals s2

D. s1 != s2
s1 equals s2