randomfile.java

我的关于语音聊天以及界面设计的Java库

/*A Random File Reader or Writer extended from java.io.RandomAccessFile.
	I add two methods in this class.
	One is "void newLine()" through which we can write a line separator in the file.
	The other one is "void append***()" series through which we can write a string at the end of the file. 
*/
package com.seu.michael.io;

import java.io.*;

class RandomFile extends RandomAccessFile{
	private String lineSeparator;
	
	public RandomFile(String fileName, String mode)throws FileNotFoundException{
		super(fileName,mode);
		lineSeparator =System.getProperty("line.separator");
	}
	
	public RandomFile(File file, String mode)throws FileNotFoundException{
		super(file,mode);
		lineSeparator =System.getProperty("line.separator");
	}
	
	public void newLine()throws IOException{
		super.writeBytes(lineSeparator);
	}
	
	public void append(byte[]b)throws IOException{
		super.seek(super.length());
		super.write(b);
	}
	
	public void append(byte[]b, int off, int len)throws IOException{
		super.seek(super.length());
		super.write(b, off, len);
	}
	
	public void append(int b)throws IOException{
		super.seek(super.length());
		super.write(b);
	}
	
	public void appendBoolean(boolean v)throws IOException{
		super.seek(super.length());
		super.writeBoolean(v) ;
	}
	
	public void appendByte(int v)throws IOException{
		super.seek(super.length());
		super.writeByte(v);
	}
	
 	public void appendBytes(String s)throws IOException{
		super.seek(super.length());
		super.writeBytes(s);
  }
  
 	public void appendChar(int v)throws IOException{
 		super.seek(super.length());
		super.writeChar(v);
 	}
 	
 	public void appendChars(String s)throws IOException{
 		super.seek(super.length());
		super.writeChars(s);
 	}
 	
 	public void appendDouble(double v)throws IOException{
 		super.seek(super.length());
		super.writeDouble(v);
 	}
 	
  public void appendFloat(float v)throws IOException{
  	super.seek(super.length());
		super.writeFloat(v);
  }
  
  public void appendInt(int v)throws IOException{
  	super.seek(super.length());
		super.writeInt(v);
  }
  
 	public void appendLong(long v)throws IOException{
 		super.seek(super.length());
		super.writeLong(v);
	}
	
 	public void appendShort(int v)throws IOException{
 		super.seek(super.length());
		super.writeShort(v);
 	}
 	
 	public void appendUTF(String str)throws IOException{
 		super.seek(super.length());
		super.writeUTF(str);
 	}
}