Java For Dummies Quick Reference

DataInputStream Class

Package: java.io

This class reads primitive data types, such as integers and doubles, directly from an input stream. It is the class you’ll use most often to read data from a binary file.

The DataInputStream class is one of many Java I/O classes that use streams. For more information, see Streams (Overview).

Constructor

Constructor	Description
DataInputStream (InputStream in)	Creates a data input stream from any object that extends the InputStream class. Typically, you pass this constructor a BufferedInputStream object.

Methods

Method	Description
boolean readBoolean()	Reads a boolean value from the input stream. It throws EOFException and IOException.
byte readByte()	Reads a byte value from the input stream. It throws EOFException and IOException.
char readChar()	Reads a char value from the input stream. It throws EOFException and IOException.
double readDouble()	Reads a double value from the input stream. It throws EOFException and IOException.
float readFloat()	Reads a float value from the input stream. It throws EOFException and IOException.
int readInt()	Reads an int value from the input stream. It throws EOFException and IOException.
long readLong()	Reads a long value from the input stream. It throws EOFException and IOException.
short readShort()	Reads a short value from ...