Java Byte Stream DataInputStream/DataOutputStream

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• Java

DataInputStream Constructor

Constructor	Description
DataInputStream(InputStream in)	Creates a DataInputStream with inputStream as an argument.

DataInputStream Methods

Method	Description
boolean readBoolean() throws IOException	Returns a boolean read from the Stream.
byte readByte() throws IOException	Returns a byte read from the Stream.
char readChar() throws IOException	Returns a char read from the Stream.
double readDouble() throws IOException	Returns a double from the Stream.
float readFloat() throws IOException	Returns a float from the Stream.
long readLong() throws IOException	Returns a long from the Stream.
short readShort() throws IOException	Returns a short from the Stream.
int readInt() throws IOException	Returns an int from the Stream.
void readFully(byte[] buf) throws IOException	Reads bytes from the Stream up to the size of buf and stores them in buf[].
void readFully(byte[] buf, int off, int len) throws IOException	Reads len bytes from the Stream and stores them at the off position of buf.
String readUTF() throws IOException	Gets a UTF-encoded value and returns it as a string.
static String readUTF(DataInput in) throws IOException	Gets the modified UTF-encoded value of DataInput and returns it as a string.
int skipBytes(int n) throws IOException	Skips n bytes.

DataOutputStream Constructor

Constructor	Description
DataOutputStream(OutputStream out)	Creates a DataOutputStream with outputStream as an argument.

DataOutputStream Methods

Method	Description
void flush() throws IOException	Outputs and clears the buffer.
int size()	Returns the number of bytes output to the Stream.
void write(int i) throws IOException	Outputs the 1 byte held by the int value i.
void write(byte buf[], int index, int size) throws IOException	Outputs size bytes from the index position of the byte array buf.
void writeBoolean(boolean b) throws IOException	Outputs a boolean as a 1-byte value.
void writeByte(int i) throws IOException	Outputs an int as a 4-byte value, high-order byte first.
void writeBytes(String s) throws IOException	Outputs the string in byte order.
void writeChar(int i) throws IOException	Outputs a char as a 2-byte value, high-order byte first.
void writeChars(String s) throws IOException	Outputs a String as char values.
void writeDouble(double d) throws IOException	Converts the double to a long using Double.doubleToBits(), then outputs the long value as 8 bytes, high-order byte first.
void writeFloat(float f) throws IOException	Converts the float using Float.floatToBits(), then outputs the int value as 4 bytes, high-order byte first.
void writeInt(int i) throws IOException	Outputs the high-order byte of the int first.
void writeLong(long l) throws IOException	Outputs the long argument value.
void writeShort(short s) throws IOException	Outputs the short argument value.
void writeUTF(String s) throws IOException	Outputs the string using UTF-8 encoding.