RandomAccessFile类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()方法用于跳过此文件中给定的字节数，并可能将给定的参数设置为最小值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()方法是一种非静态方法，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。
skipBytes() method may throw an exception at the time of skipping bytes.
skipBytes()方法在跳过字节时可能会引发异常。
IOException: This exception may throw an exception while performing input/output operation.
IOException ：在执行输入/输出操作时，此异常可能会引发异常。
Syntax:
句法：
public void skipBytes(int no_of_byte);
Parameter(s):
参数：
int no_of_byte – represents the number of bytes to skip.
int no_of_byte –表示要跳过的字节数。
Return value:
返回值：
The return type of this method is int, it returns the skipped bytes.
此方法的返回类型为int ，它返回跳过的字节。
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
输出量
ra_f.readUTF(): Welcome in Java World!!!
ra_f.skipBytes(2): 2
翻译自: https://www.includehelp.com/java/randomaccessfile-skipbytes-method-with-example.aspx
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