【java】输入

src->new->class
Name->勾选public static void main->finish

输入Sys->Alt+/自动补齐

Ctrl+S保存

package hello;import java.util.Scanner;public class Hello {public static void main(String[] args) {// TODO Auto-generated method stubSystem.out.println("Hello World");Scanner in = new Scanner(System.in);
//		System.out.println("echo:"+in.nextLine());final int amount=100;int price;price = in.nextInt();System.out.println(amount+"-"+price+"="+(100-price));}
}