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Parenthesized notation
A binary tree can be represented in parenthesized notation. The image below shows an example of how to represent...
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Individual Exercises
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Convert the linear search given below to use a Comparable. The documentation for the interface Comparable can be found online.
You don't...
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Welcome to CodeWorkout! You can edit the Java code below. The 'check my answer' button attempts to compile your Java code, and if it...
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Write a function in Java that implements the following logic: Given a string, return true if it ends in "ly".
Note that you are NOT...
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Write a function in Java that calculates a total cost with tax and tip. Given three doubles: basePrice, taxRate (as a decimal, e.g., 0.08...
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Write a function in Java that calculates what grade a student needs on the next quiz to reach a target average. Given three ints:...
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Write a function in Java that calculates the average speed of a trip. Given four ints: distance (miles), days, hours, and minutes;
...
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Write a function in Java that calculates the difference between the volumes of two cubes. Given two doubles: sideLength1 and sideLength2...
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Write a method that takes a quote and its author as two separate strings, and returns a single string formatted in this style:
"The only...
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Description
Write a recursive method int countDigits(int n) that returns how many digits are in n. The key idea on recursion in this...
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Description
In English, there are some mechanical rules to turn a singular noun to plural. For this exercise, complete the method String...
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Description
Write a recursive method int sumDigits(int n) that returns the sum of all the digits in n. The key idea over recursion in...
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Given an int array nums of any length, return a new array of its first n elements. If the array is smaller than length n, use whatever...
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Write the method boolean areAllPositive(int[] nums) in Java that returns true if all elements in the array nums are positive (greater...
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Write the method boolean areAllNegative(int[] nums) in Java that returns true if all elements in the array nums are negative (less than...
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Write the method boolean areAllEven(int[] nums) in Java that returns true if all elements in the array nums are even numbers, and returns...
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Write the method boolean areAllOdd(int[] nums) in Java that returns true if all elements in the array nums are odd numbers, and returns...
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Write the method boolean areAllGreaterThan(int[] nums, int x) in Java that returns true if all elements in the array nums are greater...
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Write the method boolean areAllLessThan(int[] nums, int x) in Java that returns true if all elements in the array nums are less than the...
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Write the method int sumAllPositives(int[] nums) in Java that returns the sum of all elements in the array nums that are positive.
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Write the method int sumBeforeNegative(int[] nums) in Java that returns the sum of the elements in the array nums up till the first...
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Write the method int sumAfterNegative(int[] nums) in Java that returns the sum of the elements in the array nums after the first negative...
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Write the method String convertName(String name) in Java that implements the following logic: Given a string in the form of "last_name,...
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Write the method String convertDate(String name) in Java that implements the following logic: Given a data in string format in the form...
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Write the method String convertTime(String time) in Java that implements the following logic: Given a time in 24hr format, often refered...