java代码-----实现有键盘获得的字符串存储在文件中，并从文件中读取后显示在屏幕上

总结：

没体会到

package com.a.b;
import java.io.*;
public class tsetOut {
	public static void main(String[] args) throws IOException {
		char ch;
		int i;
		File newDir=new File("C:\\JavaTest2");
		if(!newDir.exists()){
			newDir.mkdir();
			File newFile=new File(newDir,"newTest.txt");
			FileOutputStream outS=new FileOutputStream(newFile);
			System.err.println("input characters for file ende#:");
			while((ch=(char)System.in.read())!='#'){//这里注意转化，int---->char大字节到小字节强制转换
				outS.write(ch);
				outS.close();
				System.out.println("input finished");
				System.out.println("");
				System.out.println("now read file and output:");
				FileInputStream fis=new FileInputStream(newFile);
				while((i=fis.read())!=-1){
					System.out.println((char)i);
					fis.close();
				}
			}
		}
 
	}
}