1.以PrintWriter来实现写入
-
import java.io.*;
-
-
public class test {
-
-
-
-
- public static void main(String[] args) {
- String path="e://a.txt";
- try {
- FileWriter fw=new FileWriter(path,true);
- PrintWriter pw=new PrintWriter(fw);
- pw.println("世界");
- pw.close();
-
- fw.close();
- } catch (IOException e) {
-
- e.printStackTrace();
- }
- }
- }
2.以BufferedWriter来实现写入
-
import java.io.*;
-
-
public class test {
-
- public static void main(String[] args) {
- String path="e://a.txt";
- try {
- FileWriter fw=new FileWriter(path,true);
- BufferedWriter bw=new BufferedWriter(fw);
- bw.newLine();
- bw.write("Hello");
- bw.newLine();
- bw.write("世界");
- bw.close();
- fw.close();
- } catch (IOException e) {
-
- e.printStackTrace();
- }
- }
- }
- 读文件用BufferedReader br = new BufferedReader( new FileReader(new File("e://a.txt")));
- br.readLine();
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