例子
以下示例显示java.io.DataInputStream.readChar()方法的用法。
package com.jc2182; 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; byte[] buf = {65,66,67,68,69,70}; try { // create file output stream fos = new FileOutputStream("c:\\test.txt"); // create data output stream dos = new DataOutputStream(fos); // for each byte in the buffer for (byte b:buf) { // write character to the dos dos.writeChar(b); } // force bytes to the underlying stream dos.flush(); // create file input stream is = new FileInputStream("c:\\test.txt"); // create new data input stream dis = new DataInputStream(is); // read till end of the stream while(dis.available()>0) { // read character char c = dis.readChar(); // print System.out.print(c); } } catch(Exception e) { e.printStackTrace(); } finally { // releases all system resources from the streams if(is!=null) is.close(); if(dos!=null) is.close(); if(dis!=null) dis.close(); if(fos!=null) fos.close(); } } }
让我们编译并运行以上程序，这将产生以下结果-
