StringTest
package aa;public class StringTest {public static void main(String[] args) {System.out.println();System.out.println("" == "");//true System.out.println("".equals(""));//true System.out.println("xiyin1979" == "xiyin1979");//true System.out.println("xiyin1979".equals("xiyin1979"));//true String a = "xiyin1979"; System.out.println(a == a);//true System.out.println(""==null);//false}}using System;using System.Collections.Generic;using System.Text;namespace IOStream{ /*String类测试*/ class StringTest { public static void Main() { Console.WriteLine("" == String.Empty);//true Console.WriteLine("".Equals(String.Empty));//true Console.WriteLine("xiyin1979" == "xiyin1979");//true Console.WriteLine("xiyin1979".Equals("xiyin1979"));//true string a = "xiyin1979"; Console.WriteLine(a == a);//true Console.WriteLine(String.Empty==null);//false Console.ReadLine(); } }}
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