摘要:
package 字符串2;public class TestString {public static void main(String[] args) { String str = "Returns a new character sequence that is a subsequence of... 阅读全文
摘要:
Strings are constant; their values cannot be changed after they are created String s1 = "Hello";String s2 = "Hello";System.out.println(s1==s2); //true... 阅读全文