[代码备份]Scanner读取控制台和文件输入

import java.util.Scanner;
/**
* 扫描控制台输入
*
*/
public class console_input {
public static void main(String[] args) {
Scanner s = new Scanner(System.in);
System.out.println("请输入字符串：");
while (true) {
String line = s.nextLine();
if (line.equals("exit")) break;
System.out.println(">>>" + line);
}
}
}

import java.util.*;
import java.io.*;
/**
*用Scanner处理文件内容
*/
public class scanner_readfile{
public static void main(String[] args) throws FileNotFoundException {
FileInputStream te = new FileInputStream("test.txt");
InputStreamReader in = new InputStreamReader(te);  //这一步不是必须的，但加上会更好
Scanner s = new Scanner(in);
s.useDelimiter("0");
//while(s.hasNextLine()){
while(s.hasNext()){
System.out.println(s.next());
}
}
}