BufferedReader類skip()方法 (BufferedReader 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 characters (n_bytes_of_char) from this BufferedReader.

  skip()方法用于從此BufferedReader中跳過給定字節(jié)數(shù)的字符(n_bytes_of_char)。

• 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()方法是一種非靜態(tài)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。

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

  skip()方法在跳過字節(jié)時可能會引發(fā)異常。

  • IOException: This exception may throw while performing input/output operation.IOException ：在執(zhí)行輸入/輸出操作時，可能會拋出此異常。
  • IllegalArgumentException: This exception may throw when the given parameter is invalid.IllegalArgumentException ：當給定參數(shù)無效時，可能引發(fā)此異常。

Syntax:

句法：

public long skip(long n_bytes_of_char);

Parameter(s):

參數(shù)：

• long n_bytes_of_char – represents the number of bytes of characters to skip.

  long n_bytes_of_char –表示要跳過的字符的字節(jié)數(shù)。

Return value:

返回值：

The return type of the method is long, it returns n_bytes_of_char (i.e. number of bytes of characters) to be skipped.

該方法的返回類型為long ，它返回要跳過的n_bytes_of_char(即字符的字節(jié)數(shù))。

Example:

例：

// Java program to demonstrate the example // of long skip(long n_bytes_of_char) method of // BufferedReaderimport java.io.*;public class SkipBR {public static void main(String[] args) throws Exception {// To open text file by using // FileInputStreamFileInputStream fis = new FileInputStream("e:/includehelp.txt");// Instantiates InputStreamReader InputStreamReader inp_r = new InputStreamReader(fis);// Instantiates BufferedReader BufferedReader buff_r = new BufferedReader(inp_r);// Read character from the streamchar ch1 = (char) buff_r.read();char ch2 = (char) buff_r.read();char ch3 = (char) buff_r.read();char ch4 = (char) buff_r.read();System.out.println("ch1: " + ch1);System.out.println("ch2 : " + ch2);System.out.println("ch3: " + ch3);System.out.println("ch4 : " + ch4);// It skip 1 bytes of data// from the stream buff_r.skip(1);char ch = (char) buff_r.read();System.out.println("ch: " + ch);fis.close();inp_r.close();buff_r.close();} }

Output

輸出量

ch1: H ch2 : e ch3: l ch4 : l ch: .

翻譯自: https://www.includehelp.com/java/bufferedreader-skip-method-with-example.aspx

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