java 把map存入文件

import java.io.FileWriter;
import java.io.BufferedWriter;
import java.io.IOException;
import java.util.Map;

public class WriteMapToFile {
    public static void main(String[] args) {
        Map<String, String> map = // 假设已经有一个 Map 对象
        try {
            FileWriter writer = new FileWriter("example.txt");
            BufferedWriter bufferedWriter = new BufferedWriter(writer);
            for (Map.Entry<String, String> entry : map.entrySet()) {
                bufferedWriter.write(entry.getKey() + " : " + entry.getValue());
                bufferedWriter.newLine();
            }
            bufferedWriter.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}