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Given a string str and an int n, return a string made of the first n characters of the string, followed by the first n - 1 characters of...

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Return an array that contains the exact same numbers as the given array, but rearranged so that all the even numbers come before all the...

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Given n >= 0, create an array with the pattern {1, 1, 2, 1, 2, 3, ... 1, 2, 3 .. n} (spaces added to show the grouping). Note that...

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Given a string of any length, return a new string where the last 2 chars, if present, are swapped, so "coding" yields "codign".

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Return true if somewhere in the array, there are three increasing adjacent numbers like .... 4, 5, 6, ... or 23, 24, 25.

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Given start and end integers, return a new array containing the sequence of integers from start up to but not including end, so start = 5...

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Return an array that is "left shifted" by one--so for an input of {6, 2, 5, 3}, the method returns {2, 5, 3, 6}. You may modify and...

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Given a non-empty array of ints, return a new array containing the elements from the original array that come after the last 4 in the...

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We'll say that an element in an array is "alone" if there are values before and after it, and those values are different from it. Return...

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Return an array that contains the exact same numbers as the given array, but rearranged so that all the zeros are grouped at the start of...

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Given two arrays of ints sorted in increasing order, called outer and inner, return true if all of the numbers in inner also appear in ...

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Given n >= 0, create an array of length n * n with the following pattern, shown here for n = 3 : {0, 0, 1, 0, 2, 1, 3, 2, 1} (spaces...

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Given two strings, word and a separator sep, return a big string made of count occurrences of the word, separated by the separator...

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The number 6 is a truly great number. Given two int values, a and b, return true if either one is 6. Or if their sum or difference is 6....

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Write a method called listLength() that takes in a list of strings and returns a list of their lengths as integers. You must create a new...

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Given a string, compute a new string by moving the first char to come after the next two chars, so "abc" yields "bca". Repeat this...