RandomAccessFile類skipBytes()方法 (RandomAccessFile Class skipBytes() method)

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

  skipBytes()方法在java.io包中可用。

• skipBytes() method is used to skip the given number of bytes in this file and possibly set the given parameter to the least value 0.

  skipBytes()方法用于跳過此文件中給定的字節數，并可能將給定的參數設置為最小值0。

• skipBytes() 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.

  skipBytes()方法是一種非靜態方法，只能通過類對象訪問，如果嘗試使用類名稱訪問該方法，則會收到錯誤消息。

• skipBytes() method may throw an exception at the time of skipping bytes.

  skipBytes()方法在跳過字節時可能會引發異常。

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

  IOException ：在執行輸入/輸出操作時，此異?？赡軙l異常。

Syntax:

句法：

public void skipBytes(int no_of_byte);

Parameter(s):

參數：

• int no_of_byte – represents the number of bytes to skip.

  int no_of_byte –表示要跳過的字節數。

Return value:

返回值：

The return type of this method is int, it returns the skipped bytes.

此方法的返回類型為int ，它返回跳過的字節。

Example:

例：

// Java program to demonstrate the example // of void skipBytes(int no_of_byte) method of // RandomAccessFileimport java.io.*;class RAFSkipBytes {public static void main(String[] args) throws Exception {// Instantiate a random access file// object with file name and permissionsRandomAccessFile ra_f = new RandomAccessFile("e:/includehelp.txt", "rw");// By using writeUTF() method is to // write data to the filera_f.writeUTF("Welcome in Java World!!!");// 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 EOFra_f.seek(0);// By using readUTF() method is to // read a data in a string from// this fileSystem.out.println("ra_f.readUTF(): " + ra_f.readUTF());// By using skipBytes() method isto// return the given number of bytes to// be skipped int bytes = ra_f.skipBytes(2);System.out.println("ra_f.skipBytes(2): " + bytes);// By using close() method isto// close this stream ran_fra_f.close();} }

Output

輸出量

ra_f.readUTF(): Welcome in Java World!!! ra_f.skipBytes(2): 2

翻譯自: https://www.includehelp.com/java/randomaccessfile-skipbytes-method-with-example.aspx

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