如何将“字符串对象引用”与“字符串字符串值”进行比较

Question

==运算符或.equals方法似乎无效。 我想要的是将“对象引用”与“字符串值”进行比较。

public static void main(String[] args) {
   String sec1[]={"IAD","Bwi","IND"};
   String sec2[]={"1","2","3","4"};

   int leng1 = sec1.length;
   int leng2 = sec2.length;

   for (int counter = 0; counter < 5; counter ++) {
       int rand1 = (int)(Math.random()*leng1);
       int rand2 = (int)(Math.random()*leng2);

       String user = sec1[rand1] + " " + sec2[rand2] + " ";
       System.out.println(user);
       if (user == "Bwi 2") {     *// to see if user = Bwi 2 .(here is the problem)*
            System.out.println("It's");
            break;
       } else {
            System.out.println("It's not");
       }
   }
}

我想要的是，如果“ user ==” Bwi 2“然后停在那里。