dataio.java

初学的好东西值得一看看欢迎下载观看使用

import java.io.File;
import java.io.FileOutputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.DataInputStream;
import java.io.IOException;
class DataIo{
	public static void main(String[] args){
	try{
		File f_obj=new File("d:\\tmp\\yzj.dat");
		FileOutputStream fos=new FileOutputStream(f_obj);
		DataOutputStream dos=new DataOutputStream(fos);
		dos.writeBoolean(true);
		dos.writeChar('a');
		//dos.writeChars("I am a little bird");
		dos.writeDouble(3.5d);
		dos.writeFloat(343.43f);
		dos.writeInt(23);
		dos.writeLong(Long.MAX_VALUE);
		FileInputStream fis=new FileInputStream(f_obj);
		DataInputStream dis=new DataInputStream(fis);
		System.out.println(dis.readBoolean());
		System.out.println(dis.readChar());
		System.out.println(dis.readDouble());
		System.out.println(dis.readFloat());
		System.out.println(dis.readInt());
		System.out.println(dis.readLong());
		dos.close();
		dis.close();

	}catch(IOException e){System.out.println("磁盘IO出错.");}
	}
}