ObjectInputStream类readUnsignedShort()方法 (ObjectInputStream Class readUnsignedShort() method)

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

  readUnsignedShort()方法在java.io包中可用。

• readUnsignedShort() method is used to read 2 bytes (i.e. 16 bit) unsigned short of data from the ObjectInputStream.

  readUnsignedShort()方法用于从ObjectInputStream读取2个字节(即16位)的无符号缺少数据。

• readUnsignedShort() 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.

  readUnsignedShort()方法是一个非静态方法，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。

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

  readUnsignedShort()方法在读取unsigned short时可能会引发异常。

  • IOException: This exception may throw when getting any input/output error while performing.IOException ：在执行过程中遇到任何输入/输出错误时，可能引发此异常。
  • EOFException: This exception may throw when this stream is reached its end.EOFException ：当此流到达末尾时，可能引发此异常。

Syntax:

句法：

    public int readUnsignedShort();

Parameter(s):

参数：

• It does not accept any parameter.

  它不接受任何参数。

Return value:

返回值：

The return type of the method is int, it returns the unsigned short read.

方法的返回类型为int ，它返回无符号的短读取。

Example:

例：

// Java program to demonstrate the example 
// of int readUnsignedShort() method of 
// ObjectInputStream
import java.io.*;
public class ReadUnsingedShortOfOIS {
public static void main(String[] args) throws Exception {
// Instantiates ObjectOutputStream , ObjectInputStream 
// FileInputStream and FileOutputStream
FileOutputStream file_out_stm = new FileOutputStream("D:\\includehelp.txt");
ObjectOutputStream obj_out_stm = new ObjectOutputStream(file_out_stm);
FileInputStream file_in_stm = new FileInputStream("D:\\includehelp.txt");
ObjectInputStream obj_in_stm = new ObjectInputStream(file_in_stm);
// By using writeShort() method is to write
// short to the obj_out_stm stream
obj_out_stm.writeShort(-124);
obj_out_stm.writeShort(131);
obj_out_stm.writeShort(-182);
obj_out_stm.writeShort(154);
obj_out_stm.flush();
while (obj_in_stm.available() > 0) {
// By using readUnsingedShort() method is to read
// unsigned short from the obj_in_stm and returned
// as an integer
int val = (int) obj_in_stm.readUnsignedShort();
System.out.println("obj_in_stm.readUnsignedShort(): " + val);
}
// By using close() method is to 
// close all the streams 
file_in_stm.close();
file_out_stm.close();
obj_in_stm.close();
obj_out_stm.close();
}
}

Output

输出量

obj_in_stm.readUnsignedShort(): 65412
obj_in_stm.readUnsignedShort(): 131
obj_in_stm.readUnsignedShort(): 65354
obj_in_stm.readUnsignedShort(): 154

翻译自: https://www.includehelp.com/java/objectinputstream-readunsignedshort-method-with-example.aspx