Java 字符串比较 == 操作符

public class StringCompareequl {
   public static void main(String []args) {
      String s1 = "codingdict";
      String s2 = "codingdict";
      String s3 = new String ("Tutorials Point");
      System.out.println(s1 == s2);
      System.out.println(s2 == s3);
   }
}