lildn的博客

package hello; import java.util.Scanner; public class Hello { public static void main(String[] args) { // TODO Auto-generated method stub System.out.println("你好"); Scanner in=new Scanner(System.in); int price; price=in.nextInt(); System.out

package hello; import java.util.Scanner; public class Hello { public static void main(String[] args) { // TODO Auto-generated method stub System.out.println("你好"); Scanner in=new Scanner(System.in); System.out.println("echo:"+in.nextLine()); }

System.out.println("hello world"); 括号里是打印的内容