java常用類之——java.util.Scanner
阿新 • • 發佈:2019-02-04
package com.niu.demo; import java.util.Scanner; import java.nio.file.Paths; import java.nio.file.Path; import java.io.IOException; public class Scanner_{ public static void main(String[] args){ //從控制檯讀 Scanner in = new Scanner(System.in); while(!in.hasNextInt()){ System.out.println(in.nextLine()); } //從文件讀 Path p = Paths.get("Scanner_.java"); try{ Scanner Fin = new Scanner(p); while(Fin.hasNext()){ System.out.println(Fin.nextLine()); } }catch(IOException msg){ System.out.println(msg.toString()); }finally{ System.out.println("todo:// close"); } } }