```
public class Out
extends Object
```
The Out data type provides methods for writing strings and numbers to various output streams, including standard output, file, and sockets.
For additional documentation, see Section 3.1 of Computer Science: An Interdisciplinary Approach by Robert Sedgewick and Kevin Wayne.

Author:

Robert Sedgewick, Kevin Wayne

Constructor Summary

Constructors
Constructor	Description
`Out()`	Initializes an output stream from standard output.
`Out(OutputStream os)`	Initializes an output stream from a `OutputStream`.
`Out(String filename)`	Initializes an output stream from a file.
`Out(Socket socket)`	Initializes an output stream from a socket.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`	Closes the output stream.
`static void`	`main(String[] args)`	A test client.
`void`	`print()`	Flushes this output stream.
`void`	`print(boolean x)`	Prints a boolean to this output stream and flushes this output stream.
`void`	`print(byte x)`	Prints a byte to this output stream and flushes this output stream.
`void`	`print(char x)`	Prints a character to this output stream and flushes this output stream.
`void`	`print(double x)`	Prints a double to this output stream and flushes this output stream.
`void`	`print(float x)`	Prints a float to this output stream and flushes this output stream.
`void`	`print(int x)`	Prints an integer to this output stream and flushes this output stream.
`void`	`print(long x)`	Prints a long integer to this output stream and flushes this output stream.
`void`	`print(Object x)`	Prints an object to this output stream and flushes this output stream.
`void`	`printf(String format, Object... args)`	Prints a formatted string to this output stream, using the specified format string and arguments, and then flushes this output stream.
`void`	`printf(Locale locale, String format, Object... args)`	Prints a formatted string to this output stream, using the specified locale, format string, and arguments, and then flushes this output stream.
`void`	`println()`	Terminates the current line by printing the line-separator string.
`void`	`println(boolean x)`	Prints a boolean to this output stream and then terminates the line.
`void`	`println(byte x)`	Prints a byte to this output stream and then terminates the line.
`void`	`println(char x)`	Prints a character to this output stream and then terminates the line.
`void`	`println(double x)`	Prints a double to this output stream and then terminates the line.
`void`	`println(float x)`	Prints a float to this output stream and then terminates the line.
`void`	`println(int x)`	Prints an integer to this output stream and then terminates the line.
`void`	`println(long x)`	Prints a long to this output stream and then terminates the line.
`void`	`println(Object x)`	Prints an object to this output stream and then terminates the line.

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Out
```
public Out(OutputStream os)
```
    Initializes an output stream from a OutputStream.
    
    Parameters:
    
    os - the OutputStream
  - Out
```
public Out()
```
    Initializes an output stream from standard output.
  - Out
```
public Out(Socket socket)
```
    Initializes an output stream from a socket.
    
    Parameters:
    
    socket - the socket
    
    Throws:
    
    IllegalArgumentException - if filename is null
    
    IllegalArgumentException - if cannot create output stream from socket
  - Out
```
public Out(String filename)
```
    Initializes an output stream from a file.
    
    Parameters:
    
    filename - the name of the file
    
    Throws:
    
    IllegalArgumentException - if filename is null
    
    IllegalArgumentException - if filename is the empty string
    
    IllegalArgumentException - if cannot write the file filename
- Method Detail
  - close
```
public void close()
```
    Closes the output stream.
  - println
```
public void println()
```
    Terminates the current line by printing the line-separator string.
  - println
```
public void println(Object x)
```
    Prints an object to this output stream and then terminates the line.
    
    Parameters:
    
    x - the object to print
  - println
```
public void println(boolean x)
```
    Prints a boolean to this output stream and then terminates the line.
    
    Parameters:
    
    x - the boolean to print
  - println
```
public void println(char x)
```
    Prints a character to this output stream and then terminates the line.
    
    Parameters:
    
    x - the character to print
  - println
```
public void println(double x)
```
    Prints a double to this output stream and then terminates the line.
    
    Parameters:
    
    x - the double to print
  - println
```
public void println(float x)
```
    Prints a float to this output stream and then terminates the line.
    
    Parameters:
    
    x - the float to print
  - println
```
public void println(int x)
```
    Prints an integer to this output stream and then terminates the line.
    
    Parameters:
    
    x - the integer to print
  - println
```
public void println(long x)
```
    Prints a long to this output stream and then terminates the line.
    
    Parameters:
    
    x - the long to print
  - println
```
public void println(byte x)
```
    Prints a byte to this output stream and then terminates the line.
    To write binary data, see BinaryOut.
    
    Parameters:
    
    x - the byte to print
  - print
```
public void print()
```
    Flushes this output stream.
  - print
```
public void print(Object x)
```
    Prints an object to this output stream and flushes this output stream.
    
    Parameters:
    
    x - the object to print
  - print
```
public void print(boolean x)
```
    Prints a boolean to this output stream and flushes this output stream.
    
    Parameters:
    
    x - the boolean to print
  - print
```
public void print(char x)
```
    Prints a character to this output stream and flushes this output stream.
    
    Parameters:
    
    x - the character to print
  - print
```
public void print(double x)
```
    Prints a double to this output stream and flushes this output stream.
    
    Parameters:
    
    x - the double to print
  - print
```
public void print(float x)
```
    Prints a float to this output stream and flushes this output stream.
    
    Parameters:
    
    x - the float to print
  - print
```
public void print(int x)
```
    Prints an integer to this output stream and flushes this output stream.
    
    Parameters:
    
    x - the integer to print
  - print
```
public void print(long x)
```
    Prints a long integer to this output stream and flushes this output stream.
    
    Parameters:
    
    x - the long integer to print
  - print
```
public void print(byte x)
```
    Prints a byte to this output stream and flushes this output stream.
    
    Parameters:
    
    x - the byte to print
  - printf
```
public void printf(String format,
                   Object... args)
```
    Prints a formatted string to this output stream, using the specified format string and arguments, and then flushes this output stream.
    
    Parameters:
    
    format - the format string
    
    args - the arguments accompanying the format string
  - printf
```
public void printf(Locale locale,
                   String format,
                   Object... args)
```
    Prints a formatted string to this output stream, using the specified locale, format string, and arguments, and then flushes this output stream.
    
    Parameters:
    
    locale - the locale
    
    format - the format string
    
    args - the arguments accompanying the format string
  - main
```
public static void main(String[] args)
```
    A test client.
    
    Parameters:
    
    args - the command-line arguments

Class Out

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Out

Out

Out

Out

Method Detail

close

println

println

println

println

println

println

println

println

println

print

print

print

print

print

print

print

print

print

printf

printf

main