myutil
Class Fraction

java.lang.Object
  myutil.Fraction

public class Fraction

extends java.lang.Object

An instance of this class represents a fraction.

Constructor Summary

Fraction()
Creates a fraction 0/1

Fraction(Fraction frac)
Creates a copy of frac

Fraction(int number)
Creates a fraction number/1

Fraction(int num, int denom)
Creates a fraction num/denom

Method Summary

Fraction	add(Fraction frac) Returns the sum of this Fraction and the parameter frac.
Fraction	add(int number) Returns the sum of this Fraction and the int parameter number.
Fraction	divide(Fraction frac) Returns the quotient of this Fraction divided by the parameter frac.
Fraction	divide(int number) Returns the quotient of this Fraction divided by the int parameter number.
boolean	equals(Fraction frac) Compares this fraction and the parameter frac for equality.
static int	gcd(int m, int n) Returns the greatest common divisor of the parameters m and n
int	getDenominator() Returns the denominator of this fraction
int	getNumerator() Returns the numerator of this fraction
static Fraction	min(Fraction f1, Fraction f2) Returns the smaller of the two parameters f1 and f2
Fraction	multiply(Fraction frac) Returns the product of this Fraction and the parameter frac.
Fraction	multiply(int number) Returns the product of this Fraction and the int parameter number.
void	setDenominator(int denom) Sets the denominator of this fraction
void	setNumerator(int num) Sets the numerator of this fraction
Fraction	simplify() Returns a new Fraction object that is in the simplest form of this Fraction object
Fraction	subtract(Fraction frac) Returns the difference of this Fraction and the parameter frac.
Fraction	subtract(int number) Returns the difference of this Fraction and the int parameter number.
java.lang.String	toString() Returns the String representation of this Fraction

Methods inherited from class java.lang.Object

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

Constructor Detail

Fraction

public Fraction()

Creates a fraction 0/1

Fraction

public Fraction(int number)

Creates a fraction number/1

Parameters:

number - the numerator

Fraction

public Fraction(Fraction frac)

Creates a copy of frac

Parameters:

frac - a copy of this parameter is created

Fraction

public Fraction(int num,
                int denom)

Creates a fraction num/denom

Parameters:

num - the numerator

denom - the denominator

Method Detail

gcd

public static int gcd(int m,
                      int n)

Returns the greatest common divisor of the parameters m and n

Parameters:

m - the first number

n - the second number

Returns:

the greatest common divisor of m and n

min

public static Fraction min(Fraction f1,
                           Fraction f2)

Returns the smaller of the two parameters f1 and f2

Parameters:

f1 - the first fraction to compare

f2 - the second fraction to compare

Returns:

the smaller of the two parameters

add

public Fraction add(Fraction frac)

Returns the sum of this Fraction and the parameter frac. The sum returned is NOT simplified.

Parameters:

frac - the Fraction to add to this Fraction

Returns:

the sum of this and frac

add

public Fraction add(int number)

Returns the sum of this Fraction and the int parameter number. The sum returned is NOT simplified.

Parameters:

number - the integer to add to this Fraction

Returns:

the sum of this Fraction and number

divide

public Fraction divide(Fraction frac)

Returns the quotient of this Fraction divided by the parameter frac. The quotient returned is NOT simplified.

Parameters:

frac - the divisor of the division

Returns:

the quotient of this fraction divided by frac

divide

public Fraction divide(int number)

Returns the quotient of this Fraction divided by the int parameter number. The quotient returned is NOT simplified.

Parameters:

number - the divisor

Returns:

the quotient of this Fraction divided by number

equals

public boolean equals(Fraction frac)

Compares this fraction and the parameter frac for equality. This method compares the two by first reducing them to the simplest form.

Parameters:

frac - the fraction object to compare

Returns:

true if this Fraction object and frac are equal

getDenominator

public int getDenominator()

Returns the denominator of this fraction

Returns:

the denominator of this fraction

getNumerator

public int getNumerator()

Returns the numerator of this fraction

Returns:

the numerator of this fraction

multiply

public Fraction multiply(Fraction frac)

Returns the product of this Fraction and the parameter frac. The product returned is NOT simplified.

Parameters:

frac - the multiplier of the multiplication

Returns:

the product of this fraction and the parameter frac

multiply

public Fraction multiply(int number)

Returns the product of this Fraction and the int parameter number. The product returned is NOT simplified.

Parameters:

number - the muliplier

Returns:

the product of this Fraction and number

setDenominator

public void setDenominator(int denom)

Sets the denominator of this fraction

Parameters:

denom - the denominator of this fraction

setNumerator

public void setNumerator(int num)

Sets the numerator of this fraction

Parameters:

num - the numerator of this fraction

simplify

public Fraction simplify()

Returns a new Fraction object that is in the simplest form of this Fraction object

Returns:

a Fraction object in the simplest form of this Fraction

subtract

public Fraction subtract(Fraction frac)

Returns the difference of this Fraction and the parameter frac. The difference returned is NOT simplified.

Parameters:

frac - the Fraction to subtract from this Fraction

Returns:

the difference of this and frac

subtract

public Fraction subtract(int number)

Returns the difference of this Fraction and the int parameter number. The difference returned is NOT simplified.

Parameters:

number - the int value to subtract

Returns:

the difference of this and number

toString

public java.lang.String toString()

Returns the String representation of this Fraction

Returns:

the String representation of this Fraction