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InputStream与DataInputStream的差别

www.MyException.Cn  网友分享于:2013-12-19  浏览:263次
InputStream与DataInputStream的区别!
如题...

DataInputStream是InputStream的子类....

为什么有时候用这个,有时候用那个??

------解决方案--------------------
一个是实体类,一个是抽像类
------解决方案--------------------
DataInputStream类继承了InputStream,同是实现了DataInput接口,也就是说比普通的InputStream多一些方法。
增加方法如下:

public abstract void readFully(byte abyte0[])
throws IOException;

public abstract void readFully(byte abyte0[], int i, int j)
throws IOException;

public abstract int skipBytes(int i)
throws IOException;

public abstract boolean readBoolean()
throws IOException;

public abstract byte readByte()
throws IOException;

public abstract int readUnsignedByte()
throws IOException;

public abstract short readShort()
throws IOException;

public abstract int readUnsignedShort()
throws IOException;

public abstract char readChar()
throws IOException;

public abstract int readInt()
throws IOException;

public abstract long readLong()
throws IOException;

public abstract float readFloat()
throws IOException;

public abstract double readDouble()
throws IOException;

public abstract String readUTF()
throws IOException;

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