学习博客：DataInputstream的使用

//可以读写基本数据类型的数据
// 数据输入流: DataInputStream
// DataInputstream (InputStream in)
// 数据输出流: Da taOutputStream
// DataOutputStream (OutputStream out )

package cn.study_01;import java.io.*;public class DateStreamDemo {public static void main(String[] args) {try {write();read();} catch (IOException e) {e.printStackTrace();}}public static void read() throws IOException {DataInputStream dis = new DataInputStream(new FileInputStream(\"Dos\" +\".txt\"));byte a = dis.readByte();int b = dis.readInt();char c = dis.readChar();float d = dis.readFloat();dis.close();System.out.println(a);System.out.println(b);System.out.println(c);System.out.println(d);}public static void write() throws IOException {DataOutputStream dos =new DataOutputStream(new FileOutputStream(\"DOS.txt\"));dos.writeByte(123);dos.writeInt(123);dos.writeChar(\'a\');dos.writeFloat(123.123f);dos.close();}}