Write a function in Java that implements the following logic: Given a string, return a string made of its first 2 chars. If the string...

# Exercises

Write a function in Java that implements the following logic: Given a string, return a string of length 1 from its front, unless `front`

is...

Write a function in Java called `factorial()`

that will take a positive integer as input and returns its factorial as output.

Write a function in Java that implements the following logic: Given a string and an int `n`

, return a string made of `n`

repetitions of the...

Write a function in Java that implements the following logic: Given a string `str`

and a non-empty `word`

, return a version of the original...

Write a function in Java that implements the following logic: Given two strings, `a`

and `b`

, create a bigger string made of the first...

Given a string `str`

, find all places where a three-letter combination starting with "z" and ending with "p" occurs. Return a string where...

Write a function in Java that implements the following logic: Given a string `str`

and a non-empty `word`

, return a string made of each...

Write a function in Java that counts the number of times the string "code" appears anywhere in the given string `str`

, except that we'll...

Given two strings, return true if either of the strings appears at the very end of the other string, ignoring upper/lower case...

Write a function in Java that returns true if the given string `str`

contains an occurrence of the substring "xyz" where "xyz" is not...

We'll say that a string is *xy-balanced* if for all the 'x' characterss in the string, there exists a 'y' character somewhere later in the...

A sandwich is two pieces of bread with something in between. Write a Java method that takes in a string `str`

and returns the string that...

Given an array containing three ints, return the sum of all the elements.

Given two `int`

arrays `a`

and `b`

, each with two elements, return a new array with four elements containing all the elements of `a`

followed by...

Given an `int`

array of any length, return a new array of its first 2 elements. If the array is smaller than length 2, use whatever...

Write a function in Java that takes an `int`

array as its parameter and returns the number of even `int`

s it contains. Note: the `%`

"mod"...

Write a function in Java that takes an `int`

array as its parameter. It should return the sum of the numbers in the array, except ignore...

We'll say that a value is "everywhere" in an array if for every pair of adjacent elements in the array, at least one of the pair is that...

Given two arrays of the same length, `nums1`

and `nums2`

, for every element in `nums1`

, consider the corresponding element in `nums2`

(at the...

Write a function in Java that returns a version of the given array where all the 10's have been removed. The remaining elements should...

Write a function in Java that takes an array and returns the sum of the numbers in the array, or 0 if the array is empty. Except the...

Given an array of `int`

values, return true if the array contains either 3 even or 3 odd values all next to each other.

For each multiple of 10 in the given array, change all the values following it to be that multiple of 10, until encountering another...

Given an integer array length of 1 or more, return the difference between the largest and smallest values in the array. Note that the...