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，此異常可能會引發異常。
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
// RandomAccessFile
import java.io.*;
class RAFSkipBytes {
public static void main(String[] args) throws Exception {
// 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 data to the file
ra_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 EOF
ra_f.seek(0);
// By using readUTF() method is to
// read a data in a string from
// this file
System.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_f
ra_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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