Here is the answer,
The DataInputStream works with the binary data, while the BufferedReader work with character data.
All primitive data types can be handled by using the corresponding methods in DataInputStream class, while only string data can be read from BufferedReader class and they need to be parsed into the respective primitives.
DataInputStream is a part of filtered streams, while BufferedReader is not.
DataInputStream consumes less amount of memory space being it is binary stream, where as BufferedReader consumes more memory space being it is character stream.
The data to be handled is limited in DataInputStream, where as the number of characters to be handled has wide scope in BufferedReader.
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