What is DataInputStream in Java with example?
Java DataInputStream class allows an application to read primitive data from the input stream in a machine-independent way….Java DataInputStream class Methods.
| Method | Description |
|---|---|
| void readFully(byte[] b, int off, int len) | It is used to read len bytes from the input stream. |
Which of the following is a method of DataInputStream class?
The read() method of DataInputStream class in Java is of two types: read(byte[] b) method of DataInputStream class in Java is used to read bytes from the input stream and store them into the buffer byte array. This read() method returns the number of bytes actually read as an integer type.
What is DataInputStream class?
The Java.io.DataInputStream class lets an application read primitive Java data types from an underlying input stream in a machine-independent way.Following are the important points about DataInputStream − An application uses a data output stream to write data that can later be read by a data input stream.
What is the DataInputStream method that reads an int value?
The readInt() method of DataInputStream class in Java is used to read four input bytes and returns a integer value. This method reads the next four bytes from the input stream and interprets it into integer type and returns. Specified By: This method is specified by readInt() method of DataInput interface.
What is the difference between DataInputStream and BufferedReader?
DataInputStream is a part of filtered streams, while BufferedReader is not. DataInputStream consumes less amount of memory space being it is a binary stream, whereas BufferedReader consumes more memory space being it is character stream.
What is Java io EOFException?
java.io.EOFException. Signals that an end of file or end of stream has been reached unexpectedly during input. This exception is mainly used by data input streams to signal end of stream. Note that many other input operations return a special value on end of stream rather than throwing an exception.
Why do we use DataInputStream?
A data input stream enables an application to read primitive Java data types from an underlying input stream in a machine-independent way(instead of raw bytes). That is why it is called DataInputStream – because it reads data (numbers) instead of just bytes.
What is readint () method of datainputstream in Java?
The readInt () method of DataInputStream class in Java is used to read four input bytes and returns a integer value. This method reads the next four bytes from the input stream and interprets it into integer type and returns. Attention reader! Don’t stop learning now.
What is datainputstream class in Java?
Java DataInputStream Class Java DataInputStream class allows an application to read primitive data from the input stream in a machine-independent way. Java application generally uses the data output stream to write data that can later be read by a data input stream. Java DataInputStream class declaration
How to read primitive data from the input stream in Java?
Java DataInputStream class allows an application to read primitive data from the input stream in a machine-independent way. Java application generally uses the data output stream to write data that can later be read by a data input stream. Java DataInputStream class declaration Let’s see the declaration for java.io.DataInputStream class:
How many bytes are read from the input stream?
The number of bytes read is equal to the length of b. Reads some number of bytes from the contained input stream and stores them into the buffer array b. The number of bytes actually read is returned as an integer. This method blocks until input data is available, end of file is detected, or an exception is thrown.