jminhep.utils

Class ArrayOps

java.lang.Object

jminhep.utils.ArrayOps

public class ArrayOps
extends Object

Constructor Summary

Constructors

Constructor and Description
ArrayOps()

Method Summary

Modifier and Type	Method and Description
static int[]	copy(int[] nums) #12 Make and return a copy of the array nums.
static int	findIndex(double[] nums, double val) #5 Find the index of a specific value in an array of integers.
static int	findLargest(double[] A) #1 Find the index of the Lagest value
static int	findLargest(double[] A, int boundary) #1 Find the index of the Lagest value
static double	findMax(double[] nums) #1 Find the largest value in an array of integers.
static String	findMax(String[] strs) #2 Find the largest value in an array of Strings.
static int	findMin(int[] nums) #3 Find the smallest value in an array of integers.
static String	findMin(String[] strs) #4 Find the smallest value in an array of Strings.
static int	findSmallest(double[] A) #1 Find the index of the Smallest value
static int	findSmallest(double[] A, int boundary) #1 Find the index of the Smallest value
static int	findVal(String[] strs, String str) #6 Find the index of a specific value in an array of Strings.
static void	insert(int[] nums, int index, int val) #10 Insert val into nums at the specified index.
static int	product(int[] nums) #8 Compute and return the product of all of the elements of nums.
static void	remove(int[] nums, int index) #9 Remove from nums the value at the specified index.
static double[]	Sort(double[] unsorted) Sort array
static int	sum(int[] nums) #7 Compute and return the sum of all of the elements of nums.
static void	swapElements(int[] nums, int i, int j) #11 Swap the element at index i of nums with the element at index j.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayOps

public ArrayOps()

Method Detail

findLargest

public static int findLargest(double[] A)

#1 Find the index of the Lagest value

Parameters:

nums - an array of integers.

Returns:

the largest value in nums.

findLargest

public static int findLargest(double[] A,
                              int boundary)

#1 Find the index of the Lagest value

Parameters:

nums - an array of integers.

Returns:

the largest value in nums.

findSmallest

public static int findSmallest(double[] A)

#1 Find the index of the Smallest value

Parameters:

nums - an array of integers.

Returns:

the largest value in nums.

findSmallest

public static int findSmallest(double[] A,
                               int boundary)

#1 Find the index of the Smallest value

Parameters:

nums - an array of integers.

Returns:

the largest value in nums.

Sort

public static double[] Sort(double[] unsorted)

Sort array

Parameters:

nums - an array of integers.

Returns:

the largest value in nums.

findMax

public static double findMax(double[] nums)

#1 Find the largest value in an array of integers.

Parameters:

nums - an array of integers.

Returns:

the largest value in nums.

findMax

public static String findMax(String[] strs)

#2 Find the largest value in an array of Strings.

Parameters:

strs - an array of Strings.

Returns:

the largest String in strs.

findMin

public static int findMin(int[] nums)

#3 Find the smallest value in an array of integers.

Parameters:

nums - an array of integers.

Returns:

the smallest value in nums.

findMin

public static String findMin(String[] strs)

#4 Find the smallest value in an array of Strings.

Parameters:

strs - an array of Strings.

Returns:

the smallest String in strs.

findIndex

public static int findIndex(double[] nums,
                            double val)

#5 Find the index of a specific value in an array of integers. If the value occurs more than once the index of the first occurrence is returned.

Parameters:

nums - an array of doubles

val - the value to search for in nums.

Returns:

the index of val in nums, or -1 if val does not appear in nums.

findVal

public static int findVal(String[] strs,
                          String str)

#6 Find the index of a specific value in an array of Strings. If the value occurs more than once the index of the first occurance is returned.

Parameters:

strs - an array of Strings.

str - the value to search for in strs.

Returns:

the index of str in strs, or -1 if val does not appear in strs.

sum

public static int sum(int[] nums)

#7 Compute and return the sum of all of the elements of nums.

Parameters:

nums - an array of integers.

Returns:

the sum of all of the elements of nums.

product

public static int product(int[] nums)

#8 Compute and return the product of all of the elements of nums.

Parameters:

nums - an array of integers.

Returns:

the product of all of the elements of nums.

remove

public static void remove(int[] nums,
                          int index)

#9 Remove from nums the value at the specified index. All of the values in nums with indices greater than index must be shifted down by 1 index to fill in the empty space.

Parameters:

nums - an array of integers.

index - the index of the value to remove from nums.

insert

public static void insert(int[] nums,
                          int index,
                          int val)

#10 Insert val into nums at the specified index. All values in nums with index >= index must be shifted up by one index to make an empty space for val. If the array is full then the value at the maximum index will be lost.

Parameters:

nums - an array of integers.

index - the index at which val is to be inserted.

val - the value to be inserted into nums.

swapElements

public static void swapElements(int[] nums,
                                int i,
                                int j)

#11 Swap the element at index i of nums with the element at index j.

Parameters:

nums - an array of integers.

i - index of the first number to be swapped.

j - index of the second number to be swapped.

copy

public static int[] copy(int[] nums)

#12 Make and return a copy of the array nums.

Parameters:

nums - an array of integers

Returns:

a new array that is a copy of nums.