DataInputStream類readShort()方法 (DataInputStream Class readShort() method)

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

  readShort()方法在java.io包中可用。

• readShort() method is used to read 2 bytes (i.e. 16 bit) of data input and returns a short value read.

  readShort()方法用于讀取2個字節(即16位)的數據輸入，并返回讀取的短值。

• readShort() 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.

  readShort()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。

• readShort() method may throw an exception at the time of reading short.

  readShort()方法在讀取簡短內容時可能會引發異常。

  • IOException: This exception may throw when this stream is not opened.IOException ：如果未打開此流，則可能引發此異常。
  • EndOfFileException: This exception may throw when this stream has reached its endpoint.EndOfFileException ：當此流到達其端點時，可能引發此異常。

Syntax:

句法：

public final short readShort();

Parameter(s):

參數：

• It does not accept any parameter.

  它不接受任何參數。

Return value:

返回值：

The return type of the method is short, it returns 2 bytes of short value, manipulated as a short value.

該方法的返回類型為short ，它返回2個字節的short值，并作為short值進行操作。

Example:

例：

// Java program to demonstrate the example // of short readShort() method of // DataInputStreamimport java.io.*;public class ReadShortOfDIS {public static void main(String[] args) throws IOException {InputStream is_stm = null;DataInputStream dis_stm = null;FileOutputStream fos_stm = null;DataOutputStream dos_stm = null;short[] s_arr = {12451,14523,21451,13452};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 short till endfor (short val: s_arr) {// By using writeShort() method isto// write a short value to the// DataOutputStream dos_stmdos_stm.writeShort(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 readShort() method isto read // short at a time from dis_stmshort sh = dis_stm.readShort();System.out.println("dis_stm.readShort(): " + sh);}} 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.readShort(): 12451 dis_stm.readShort(): 14523 dis_stm.readShort(): 21451 dis_stm.readShort(): 13452

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

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