[Java]PrintWriter&FileWriter 写入追加到文件
2021-05-14 00:29
标签：who quick color col writer ike throws 文件 无法 FileWriter只能写入文件，无法往文件中追加内容 都别忘记 throws IOException [Java]PrintWriter&FileWriter 写入追加到文件 标签：who quick color col writer ike throws 文件 无法 原文地址：https://www.cnblogs.com/profesor/p/13125861.html//用PrintWriter写入文件
import java.io.IOException;
import java.io.PrintWriter;
public class PrintWriteDemo
{
public static void main(String[] args) throws IOException
{
PrintWriter out = new PrintWriter("01.txt");
out.print("the quick brown fox");
out.println(" jumps over the lazy dog.");
out.write("work is like a capricious lover whose ");
out.write("incessant demands are resented but who is missed terribly when she is not there\n");
out.close(); //如果不关闭文件，文件停留在buffer zone, 不会写进"01.txt"中
}
}
//用FileWriter写入和追加文件
import java.io.IOException;
import java.io.FileWriter;
public class FileWriterDemo
{
public static void main(String[] args) throws IOException
{
FileWriter out = new FileWriter("02.txt");
//constructor中添加true,即FileWriter out = new FileWriter("02.txt", true)就是往02.txt中追加文件了
out.write("work is like a capricious lover whose ");
out.write("incessant demands are resented but who is missed terribly when she is not there\n");
out.write(98.7 + "\n");
out.close(); //很重要，一定记得关闭文件
}
}
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文章标题：[Java]PrintWriter&FileWriter 写入追加到文件
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