Java 实例 - 向文件中追加数据
Java 教程
· 2019-02-10 20:59:52
以下实例演示了使用 filewriter 方法向文件中追加数据：
Main.java 文件
import java.io.*;
public class Main {
public static void main(String[] args) throws Exception {
try {
BufferedWriter out = new BufferedWriter(new FileWriter("filename"));
out.write("aString1\n");
out.close();
out = new BufferedWriter(new FileWriter("filename",true));
out.write("aString2");
out.close();
BufferedReader in = new BufferedReader(new FileReader("filename"));
String str;
while ((str = in.readLine()) != null) {
System.out.println(str);
}
in.close();
}
catch (IOException e) {
System.out.println("exception occoured"+ e);
}
}
}
以上代码运行输出结果为：
aString1 aString2
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