JAVA单排日记-2019/10/14-字符串 String

2.字符串的常量池

用" "直接引用的字符串在字符串常量池中，new的字符串不在

package day1014;

public class DemoString {
    public static void main(String[] args) {
        String a = "abc";
        String b = "abc";

        char[] c = {'a','b','c'};
        String d = new String(c);

        System.out.println(a==b);  //true
        System.out.println(a==d);  //false
        System.out.println(d==b);  //false
    }
}