read 和write

read：

import java.io.FileReader; //导入包
import java.io.IOException; //导入包

public class read {

package com.chinasoft.java.wangluobiancheng;import java.io.FileReader;
import java.io.IOException;public class read {public static void main(String []args)throws IOException{FileReader f2=new FileReader("haha1.txt");int i= f2.read();while(i!=-1){System.out.print((char)i);i=f2.read();}//while((f2.read())!=-1){//    System.out.print((char)f2.read());//}
            f2.close();}}

write:

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
public class write {public static void main(String[] args) throws IOException {// TODO Auto-generated method stub
FileWriter f1=new FileWriter("haha1.txt");        String str="hahahha";f1.write("hahahha");f1.flush();f1.close();}}

转载于:https://www.cnblogs.com/-strong/p/7084711.html

read 和write

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