Writer

来源：互联网发布：赣州教育软件代理编辑：程序博客网时间：2024/05/01 10:45

输出流:Writer基类
子类:OutputStreamWriter
孙子类:FileWriter
Writer类常用方法
write(String str)
write(String str,int off,int len)
void close()
void flush()
子类OutputStreamWriter常用的构造方法
OutputStreamWriter(OutputStream out)
OutputStreamWriter(OutputStream out,String charsetName)
FileWriter类是 OutputStreamWriter 的子类
FileWriter(File file)
FileWriter(String name,true)//File file = new File("D:\\myDoc\\ 简介.txt");FileWriter fw = new FileWriter(file);

该类只能按照本地平台的字符编码来写数据，用户不能指定其他的字符编码类型

public class WriterDemo {public static void main(String[] args) {Writer write = null;try {write = new FileWriter("D:/liangsong/hello.txt",true);write.write("123456");} catch (IOException e) {e.printStackTrace();} finally {try {write.close();} catch (IOException e) {e.printStackTrace();}}}}

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