java DataInputStream和DataOutputStream详解
操作基本数据类型的流
DataInputStream
DataOutputStream
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import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; public class IntegerDemo { public static void main(String[] args) throws IOException { myWrite(); myReader(); } private static void myWrite() throws IOException { // TODO Auto-generated method stub // 创建数据输出流对象 FileOutputStream fos = new FileOutputStream( "E:\\zikao\\file\\cs.txt" ); DataOutputStream dos = new DataOutputStream(fos); // 写数据 dos.writeByte( 10 ); dos.writeShort( 100 ); dos.writeInt( 1000 ); dos.writeLong( 10000 ); dos.writeFloat( 12 .34F); dos.writeDouble( 12.56 ); dos.writeChar( 'a' ); dos.writeBoolean( true ); // 释放资源 dos.close(); } private static void myReader() throws IOException { // TODO Auto-generated method stub // 创建数据输入流对象 FileInputStream fis = new FileInputStream( "E:\\zikao\\file\\cs.txt" ); DataInputStream dis = new DataInputStream(fis); // 读数据 byte b = dis.readByte(); short s = dis.readShort(); int i = dis.readInt(); long l = dis.readLong(); float f = dis.readFloat(); double d = dis.readDouble(); char c = dis.readChar(); boolean bl = dis.readBoolean(); // 释放资源 dis.close(); System.out.println(b); System.out.println(s); System.out.println(i); System.out.println(l); System.out.println(f); System.out.println(d); System.out.println(c); System.out.println(bl); } } |
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