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Copy pathDataStreamTest.java
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47 lines (37 loc) · 1.2 KB
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package java_base;
import java.io.DataInputStream;
import java.io.DataOutput;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
public class DataStreamTest {
public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
FileOutputStream fos = new FileOutputStream("d:\\test.txt");
DataOutputStream dos = new DataOutputStream(fos);
dos.writeByte((byte)123);
dos.writeShort((short)123);
dos.writeInt(1234567890);
dos.writeLong(998877665544332211L);
dos.writeFloat(2.7182f);
dos.writeDouble(3.141592654);
dos.writeChar('J');
dos.writeBoolean(true);
dos.writeUTF("邯郸");
FileInputStream fis = new FileInputStream("d:\\test.txt");
DataInputStream dis = new DataInputStream(fis);
System.out.println(dis.readByte());
System.out.println(dis.readShort());
System.out.println(dis.readInt());
System.out.println(dis.readLong());
System.out.println(dis.readFloat());
System.out.println(dis.readDouble());
System.out.println(dis.readChar());
System.out.println(dis.readBoolean());
System.out.println(dis.readUTF());
}
}
/*
* 把字节流转化到数据流
* 写的数据和读的数据类型要一一对应
*/