阅读下段代码, class Dog { public String name; Dog(String name){ this.name =name; } } publi
3、阅读下段代码, class Dog { public String name; Dog(String name){ this.name =name; } } public class Demo1 { public static void main(String[] args){ Dog dog1 = new Dog("xiaohuang"); Dog dog2 = new Dog("xiaohuang"); String s1 = dog1.toString(); String s2 = dog2.toString(); String s3 = "xiaohuang"; String s4 = "xiaohuang"; } } 返回值为true的是?()
A、A.dog1.equals(dog2)
B、B.s1.equals(s2)
C、C.s3.equals(s4)
D、D.dog1==dog2