1. WIKI教程
2. Java.io包
3. short readShort()

short readShort()

描述 (Description)

java.io.DataInputStream.readShort()方法读取两个输入字节并返回一个short值。

声明 (Declaration)

以下是java.io.DataInputStream.readShort()方法的声明 -

public final short readShort()

参数 (Parameters)

NA

返回值 (Return Value)

此方法返回2个字节的输入流，解释为短值。

异常 (Exception)

• IOException - 如果发生I/O错误或流已关闭。

• EOFException - 如果输入流在读取两个字节之前到达结尾。

例子 (Example)

以下示例显示了java.io.DataInputStream.readShort（）方法的用法。

package com.iowiki;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
public class DataInputStreamDemo {
   public static void main(String[] args) throws IOException {
      InputStream is = null;
      DataInputStream dis = null;
      FileOutputStream fos = null;
      DataOutputStream dos = null;
      short[] s = {12982,3568};
      try {
         // create file output stream
         fos = new FileOutputStream("c:\\test.txt");
         // create data output stream
         dos = new DataOutputStream(fos);
         // for each short in short buffer
         for(short j:s) {
            // write short to data output stream
            dos.writeShort(j);
         }
         // force data to the underlying file output stream
         dos.flush();
         // create file input stream
         is = new FileInputStream("c:\\test.txt");
         // create new data input stream
         dis = new DataInputStream(is);
         // available stream to be read
         while(dis.available()>0) {
            // read two bytes from data input, return short
            short k = dis.readShort();
            // print short value
            System.out.print(k+" ");
         }
      } catch(Exception e) {
         // if any error occurs
         e.printStackTrace();
      } finally {
         // releases all system resources from the streams
         if(is!=null)
            is.close();
         if(dis!=null)
            dis.close();
         if(fos!=null)
            fos.close();
         if(dos!=null)
            dos.close();
      }
   }
}

让我们编译并运行上面的程序，这将产生以下结果 -

12982 3568