DataInputStream類skipBytes()方法 (DataInputStream 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 of data from this DataInputStream.

  skipBytes()方法用于從此DataInputStream跳過給定數量的數據字節。

• 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 of data.

  skipBytes()方法在跳過數據字節時可能會引發異常。

  IOException: This exception may throw when getting any input/output error.

  IOException ：遇到任何輸入/輸出錯誤時，可能引發此異常。

Syntax:

句法：

public final int skipBytes(int number);

Parameter(s):

參數：

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

  int number –表示要跳過的字節數。

Return value:

返回值：

The return type of the method is int, it returns the exact number of bytes to be skipped.

方法的返回類型為int ，它返回要跳過的確切字節數。

Example:

例：

// Java program to demonstrate the example // of int skipBytes(int number) method of // DataInputStreamimport java.io.*;public class SkipBytesOfDIS {public static void main(String[] args) throws IOException {InputStream is_stm = null;DataInputStream dis_stm = null;FileOutputStream fos_stm = null;DataOutputStream dos_stm = null;byte[] b_arr = {12,20,45,98,75,69,30,58,47,61,83,55};try {// Instantiate FileInputStream, // DataInputStream, FileOutputStream// and DataOutputStream fos_stm = new FileOutputStream("C:\\Users\\Preeti Jain\\Desktop\\programs\\includehelp.txt");dos_stm = new DataOutputStream(fos_stm);// Loop to write each byte till endfor (byte val: b_arr) {// By using write() method isto// write a byte value to the// DataOutputStream dos_stmdos_stm.write(val);}is_stm = new FileInputStream("C:\\Users\\Preeti Jain\\Desktop\\programs\\includehelp.txt");dis_stm = new DataInputStream(is_stm);// Loop To Read Available Data till endwhile (dis_stm.available() > 0) {// By using skipBytes() method is to// skip 2 bytes of data from the streamdis_stm.skipBytes(2);// By using read() method isto read // byte from dis_stmint in = dis_stm.read();System.out.println("dis_stm.read(): " + in );}} catch (Exception ex) {System.out.println(ex.toString());} finally {// To free system resources linked// with these streamsif (is_stm != null)is_stm.close();if (dis_stm != null)dis_stm.close();if (dos_stm != null)dos_stm.close();if (fos_stm != null)fos_stm.close();}} }

Output

輸出量

dis_stm.read(): 45 dis_stm.read(): 69 dis_stm.read(): 47 dis_stm.read(): 55

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

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