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5 yıl önce | |
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.idea | 5 yıl önce | |
DocumentationOnArrays | 5 yıl önce | |
arraz | 5 yıl önce | |
.gitignore | 5 yıl önce | |
README.md | 5 yıl önce |
This is a series of java array problems to prove your array knowledge.
You may ONLY use the information in the DocumentationOnArrays folder only...
At this point you should be able to write up these methods without searching for code patterns on google.
At this point you should be able to write up these methods without searching for code patterns on StackOverflow.
At this point in the cohort, you should be able to glance at the problem, write a couple tests, nd then implement the method.
For each of these problems, you need to write the method itself, and two tests for each method.
If the method is named sumValuesOfArray
, you should write two test methods:
Write a method in the Arraz class for each of these:
sumValuesOfArray
sumDoublesOfArray
averageOfArray
doubleAverageOfArray
containsValue
reverseArray
find the number of even and odd integers in a given array of integers getOddEvensOfArray
, return an object of type
public class OddEven{
public int odds;
public int evens;
}
find the index of an array element, pass both array and value as arguments findIndexOf
copy an array by iterating the array copyArrayByInterator
copy an array by looping thru the array copyArrayByLoop
remove a specific element from an array removeElementFromArray
insert an element into an array a specific position insertIntoArrayAt
find the maximum and minimum value of an array findMaxMinOfArray
return a
public class MaxMin{
public int max;
public int min;
}
remove duplicate elements from an array, return new array removeDupesFromArray
(make it an array of Integers)
find the second largest element in an array of Doubles find2ndLargestValueFromArray
convert an array to ArrayList makeMeAnArrayListFromArray
convert an ArrayList to an array makeMeAnArrayFromArrayList
test the equality of two arrays check2ArraysForEqual
compute the average value of an array of integers except the largest and smallest values (be thinking
of code re-use for this one) averageArrayWithoutMaxMin
check if an array of integers contains two specified elements: 65 and 77, returns a boolean arrayHas65and77
check if the sum of all the 10's in the array is exactly 30. Return false if the condition does not satisfy, otherwise true. theTotalofTensIs30
find smallest and second smallest elements of a given array
copy an array of integers, reverse it, and return it. makeMeACopyPlease
remove the last element from an array of integers, return a copy removeLastItemAndCopy
remove the first element from an array of integers, return a copy removeFirstItemAndCopy
insert a new element at the start of an array, return a copy insertAtStartAndCopy
insert a new element at the end of an array, return a copy insertAtEndAndCopy
separate even and odd numbers of an given array of integers. Put all even numbers first, and then odd numbers sortArrayIntoEvensThenOdds
If you need an array of ints use this one.
int[] spiffyHandyIntArray = new int[] {4,5,102,6,-7,12,-32,92,8};
If you need an array of Doubles use this one.
Double[] spiffyHandyDoubleArray = new Double[] {1.0, 0.5, 3.6, 38.4, 17.3, 62.0, 9.0, 3.375, 0, 3.14159};
But, if you don't like these arrays, feel free to make your own.