cs101.util
Class MoreMath

java.lang.Object
  cs101.util.MoreMath

public class MoreMath

extends java.lang.Object

cs101.util.MoreMath is an extension of the java.lang.Math library.
Copyright 1996 Massachusetts Institute of Technology

Author:

Todd C. Parnell, tparnell@ai.mit.edu, Lynn Andrea Stein, las@ai.mit.edu

Method Summary

static int	randomInt(int range) Generate a random int between 0 and range.
static int	sign(int x) Returns 1 if the input is positive, -1 if it is negative, and 0 otherwise.
static int	square(int x) Returns the square of the input.

Methods inherited from class java.lang.Object

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

Method Detail

randomInt

public static int randomInt(int range)

Generate a random int between 0 and range. Note that if range is negative, this returns a negative number.

Parameters:

range - desired maximum int.

square

public static int square(int x)

Returns the square of the input. No checks are made for MaxInt overflow.

Parameters:

x - the number to square

sign

public static int sign(int x)

Returns 1 if the input is positive, -1 if it is negative, and 0 otherwise.

Parameters:

x - the number to get the sign of