RandomAccessFile类close()方法 (RandomAccessFile Class close() method)

• close() method is available in java.io package.

  close()方法在java.io包中可用。

• close() method is used to close this RandomAccessFile stream and free all other system resources linked with this stream.

  close()方法用于关闭此RandomAccessFile流并释放与此流链接的所有其他系统资源。

• close() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  close()方法是一个非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• close() method may throw an exception at the time of the closing stream.

  close()方法在关闭流时可能会引发异常。

  IOException: This exception may throw while performing input/output operation.

  IOException ：在执行输入/输出操作时，可能会抛出此异常。

Syntax:

句法：

    public void close();

Parameter(s):

参数：

• It does not accept any parameter.

  它不接受任何参数。

Return value:

返回值：

The return type of this method is void, it returns nothing.

此方法的返回类型为void ，不返回任何内容。

Example:

例：

// Java program to demonstrate the example 
// of void close() method of RandomAccessFile
import java.io.*;
class RAFClose {
public static void main(String[] args) throws Exception {
String str = "Welcome, in Java World!!!";
// Instantiate a random access file
// object with file name and permissions
RandomAccessFile ra_f = new RandomAccessFile("e:/includehelp.txt", "rw");
// By using writeUTF() method is to 
// write a string value to the file by using
// UTF encoding scheme
ra_f.writeUTF(str);
// by using seek() method is to 
// set the current file indicator
// from where read/write could 
// start i.e. we set here 0 so reading
// will be done from 0 till EOF
ra_f.seek(0);
System.out.println("ra_f.readUTF(): " + ra_f.readUTF());
// By using close() method isto
// close this stream ran_f
ra_f.close();
}
}

Output

输出量

ra_f.readUTF(): Welcome, in Java World!!!

翻译自: https://www.includehelp.com/java/randomaccessfile-close-method-with-example.aspx