myBigInteger

Class UnsignedBigInt

java.lang.Object

myBigInteger.AdditionOnlyInt

myBigInteger.AddSubInt

myBigInteger.UnsignedBigInt

All Implemented Interfaces:

java.lang.Comparable<BigInt>, BigInt

public class UnsignedBigInt
extends AddSubInt

Author:

Chung-Chih Li

Constructor Summary

Constructors

Constructor and Description
UnsignedBigInt(long a)
UnsignedBigInt(java.lang.String a) This is a constructor that construct an AdditionOnlyInt with value presented by the input string.
UnsignedBigInt(UnsignedBigInt a) Copy constructor; a deep copy should be performed.

Method Summary

Modifier and Type	Method and Description
static UnsignedBigInt	add(UnsignedBigInt a, UnsignedBigInt b)
void	div(BigInt ub, BigInt ur) Students don't have to implement this method for Asg3.
static UnsignedBigInt	div(UnsignedBigInt a, UnsignedBigInt b, UnsignedBigInt r)
void	div10() Shift on digit to the right
static UnsignedBigInt	subtract(UnsignedBigInt a, UnsignedBigInt b)
void	times(BigInt ua) Students don't have to implement this method for Asg3.
static UnsignedBigInt	times(UnsignedBigInt a, UnsignedBigInt b)
void	times10() Shift on digit to the left
void	timesD(byte x) Times a single digit x, where x must < 10

Methods inherited from class myBigInteger.AddSubInt

add, subtract, subtract

Methods inherited from class myBigInteger.AdditionOnlyInt

add, add, compareTo, equals, toString

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

UnsignedBigInt

public UnsignedBigInt(java.lang.String a)

This is a constructor that construct an AdditionOnlyInt with value presented by the input string. For example, if input a = "00012340", this constructor will set the byte array to have value {0,4,3,2,1}. Note that the leading zeros in the input string should not be stored.

Parameters:

a - is a string such as "00012340"

UnsignedBigInt

public UnsignedBigInt(long a)

UnsignedBigInt

public UnsignedBigInt(UnsignedBigInt a)

Copy constructor; a deep copy should be performed.

Parameters:

a - UnsignedBigIn

Method Detail

times10

public void times10()

Shift on digit to the left

div10

public void div10()

Shift on digit to the right

add

public static UnsignedBigInt add(UnsignedBigInt a,
                                 UnsignedBigInt b)

subtract

public static UnsignedBigInt subtract(UnsignedBigInt a,
                                      UnsignedBigInt b)

timesD

public void timesD(byte x)

Times a single digit x, where x must < 10

Parameters:

x - is a single digit number

times

public void times(BigInt ua)

Description copied from class: AdditionOnlyInt

Students don't have to implement this method for Asg3. Just make an empty function body.

Specified by:

times in interface BigInt

Overrides:

times in class AdditionOnlyInt

Parameters:

ua - is the multiplier

times

public static UnsignedBigInt times(UnsignedBigInt a,
                                   UnsignedBigInt b)

Parameters:

a - is an UnsignedBigInt

b - is an UnsignedBigInt

Returns:

an UnsignedBigInt, which is a*b

div

public void div(BigInt ub,
                BigInt ur)

Description copied from class: AdditionOnlyInt

Students don't have to implement this method for Asg3. Just make an empty function body.

Specified by:

div in interface BigInt

Overrides:

div in class AdditionOnlyInt

Parameters:

ub - is the divisor.

ur - is a place for remainder.

div

public static UnsignedBigInt div(UnsignedBigInt a,
                                 UnsignedBigInt b,
                                 UnsignedBigInt r)

Parameters:

a - UnsignedBigInt

b - UnsignedBigInt divisor

r - remainder (a % b)

Returns:

a/b in UnsignedBigInt