Java FilterInputStream skip（）方法与示例

FilterInputStream类skip()方法 (FilterInputStream Class skip() method)

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

  skip()方法在java.io包中可用。

• skip() method is used to skip the given number of bytes of data from this FilterInputStream.

  skip()方法用于从此FilterInputStream跳过给定数目的数据字节。

• skip() 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.

  skip()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。

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

  skip()方法在跳过数据字节时可能会引发异常。

  IOException: This exception may throw when the given parameter is invalid.

  IOException ：如果给定参数无效，则可能引发此异常。

Syntax:

句法：

public long skip(long number);

Parameter(s):

参数：

• long number – represents the number of bytes to be skipped.

  long number –表示要跳过的字节数。

Return value:

返回值：

The return type of the method is long, it returns the exact number of bytes skipped.

该方法的返回类型为long ，它返回跳过的确切字节数。

Example:

例：

// Java program to demonstrate the example // of long skip(long number) method // of FilterInputStreamimport java.io.*;public class SkipOfFIS {public static void main(String[] args) throws Exception {FileInputStream fis_stm = null;FilterInputStream fil_stm = null;int count = 0;try {// Instantiates FileInputStream and // FilterInputStreamfis_stm = new FileInputStream("D:\\includehelp.txt");fil_stm = new BufferedInputStream(fis_stm);// Loop to read until available// bytes leftwhile ((count = fil_stm.read()) != -1) {// Display corresponding char valuechar ch = (char) count;// Display value of chSystem.out.println("ch: " + ch);// By using skip() method is// to skip 2 bytes of char value// from fil_stm long skip = fil_stm.skip(2);System.out.println("fil_stm.skip(2): " + skip);}} catch (Exception ex) {System.out.println(ex.toString());} finally {// with the help of this block is to// free all necessary resources linked// with the streamif (fis_stm != null) {fis_stm.close();if (fil_stm != null) {fil_stm.close();}}}} }

Output

输出量

ch: J fil_stm.skip(2): 2 ch: a fil_stm.skip(2): 2 ch: r fil_stm.skip(2): 2 ch: . fil_stm.skip(2): 2 ch: . fil_stm.skip(2): 2

翻译自: https://www.includehelp.com/java/filterinputstream-skip-method-with-example.aspx

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