package com.tjrac;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
/**
* 数据以字符的方式写入文件
*/
public class FileWriterDemo {
public static void main(String[] args) throws IOException {
//实例化file对象
//true
File file = new File("mydata.txt");
FileWriter fw = null;
try {
//实例化FileWriter对象
//追加模式true,false覆盖
fw = new FileWriter(file, false);
//把字符串写入文件中
String str = "hello java";
//刷新
fw.flush();
fw.write(str);
} catch (IOException e) {
e.printStackTrace();
} finally {
if (fw != null) {
fw.close();//关闭流
}
}
}
}