public class Example8_1{
public static void main(String args[]){
String s1,s2;
s1=new String("天道酬勤");
s2=new String("天道酬勤");
System.out.println(s1.equals(s2)); //ture
System.out.println(s1==s2); // false
String s3,s4;
s3="勇者无敌";
s4="勇者无敌";
System.out.println(s3.equals(s4)); //ture
System.out.println(s3==s4); //ture
}
}
为什么第二个是false啊