Java读写二进制文件，java读写二进制, import j

Java读写二进制文件，java读写二进制, import j

    import java.io.DataInputStream;      import java.io.DataOutputStream;      import java.io.File;      import java.io.FileInputStream;      import java.io.FileOutputStream;      import java.io.IOException;      public class BinaryReadWrite {          private DataInputStream dis=null;          private DataOutputStream dos=null;          private String s_FilePath="d:/bin.dat";          private byte[] m_datapadding = { 0x00 }; //填充空白，以补足字节位数.          public BinaryReadWrite() {              // TODO Auto-generated constructor stub              init();          }          private void init(){              try{                  if(!new File(s_FilePath).exists()){                      new File(s_FilePath).createNewFile();                  }                  dis=new DataInputStream(new FileInputStream(new File(s_FilePath)));                  dos=new DataOutputStream(new FileOutputStream(new File(s_FilePath)));              }catch(Exception e){                  e.printStackTrace();              }          }          public void writeBinaryStream(){              try{                  if(dos!=null){                      for(int i=0;i<2;i++){                          //write boolean value.                          dos.writeBoolean(true);                          //write a char value.                          char c='a';                          dos.writeChar((int)c);                          Double d=12.567d;                          dos.writeDouble(d);                          Float f=56.782f;                          dos.writeFloat(f);                          int k=105;                          dos.writeInt(k);                          long l=98765l;                          dos.writeLong(l);                          short st=12;                          dos.writeShort(st);                          String cs="Java读写二进制文件";                          String cs1="二进制文件";                          if(i==0){                              dos.writeUTF(cs);                          }else{                              dos.writeUTF(cs1);                          }                          dos.write(m_datapadding);                      }                      dos.flush();                      dos.close();                  }              }catch(Exception e){                  e.printStackTrace();              }          }          public void readBinaryStream(){              try{                  if(dis!=null){                      while(dis.available()>0){                          System.out.println(dis.available());                          System.out.println(dis.readBoolean());                          char c=(char)dis.readChar();                          System.out.println(c);                          System.out.println(dis.readDouble());                          System.out.println(dis.readFloat());                          System.out.println(dis.readInt());                          System.out.println(dis.readLong());                          System.out.println(dis.readShort());                          System.out.println(dis.readUTF());                          System.out.println(dis.read(m_datapadding));                      }                  }              }catch(Exception e){                  e.printStackTrace();              }          }          public static void main(String[] args) throws IOException {              BinaryReadWrite bin=new BinaryReadWrite();              bin.writeBinaryStream();              bin.readBinaryStream();          }      }