java学生成绩管理系统io
时间: 2023-12-22 20:29:00 浏览: 34
```java
// 从文件中读取学生成绩信息
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
public class ReadStudentInfo {
public static void main(String[] args) {
String filePath = "student_info.txt";
try {
BufferedReader reader = new BufferedReader(new FileReader(filePath));
String line;
while ((line = reader.readLine()) != null) {
System.out.println(line);
}
reader.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
```
```java
// 将学生成绩信息写入文件
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
public class WriteStudentInfo {
public static void main(String[] args) {
String filePath = "student_info.txt";
try {
BufferedWriter writer = new BufferedWriter(new FileWriter(filePath));
writer.write("学生1, 90\n");
writer.write("学生2, 85\n");
writer.write("学生3, 95\n");
writer.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
```