nslj.src.system
Class Console

java.lang.Object
  |
  +--nslj.src.system.Console

public class Console

extends java.lang.Object

Constructor Summary

Console()

Method Summary

static void	printPrompt(java.lang.String prompt) print a prompt on the console but don't print a newline
static double	readDouble(java.lang.String prompt) read a floating point number from the console.
static int	readInt(java.lang.String prompt) read an integer from the console.
static java.lang.String	readString() read a string from the console.
static java.lang.String	readString(java.lang.String prompt) read a string from the console.
static java.lang.String	readWord() read a word from the console.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Console

public Console()

Method Detail

printPrompt

public static void printPrompt(java.lang.String prompt)

print a prompt on the console but don't print a newline

Parameters:

prompt - the prompt string to display

readString

public static java.lang.String readString()

read a string from the console. The string is terminated by a newline. Multiple space is trim to single space

Returns:

the input string (without the newline)

readString

public static java.lang.String readString(java.lang.String prompt)

read a string from the console. The string is terminated by a newline

Parameters:

prompt - the prompt string to display

Returns:

the input string (without the newline)

readWord

public static java.lang.String readWord()

read a word from the console. The word is any set of characters terminated by whitespace

Returns:

the 'word' entered

readInt

public static int readInt(java.lang.String prompt)

read an integer from the console. The input is terminated by a newline

Parameters:

prompt - the prompt string to display

Returns:

the input value as an int

Throws:

java.lang.NumberFormatException - if bad input

readDouble

public static double readDouble(java.lang.String prompt)

read a floating point number from the console. The input is terminated by a newline

Parameters:

prompt - the prompt string to display

Returns:

the input value as a double

Throws:

java.lang.NumberFormatException - if bad input