JAVA complete a method that swaps the first and second half of an array of integers. For example, if the array contains the values 1 4 9 16 25 36 then after calling the method, it should contain the values 16 25 36 1 4 9 If the array contains an odd number of elements, leave the middle element in place. For example, 1 4 9 16 25 36 45 becomes 25 36 45 16 1 4 9
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JAVA
complete a method that swaps the first and second half of an array of integers. For example, if the array contains the values
1 4 9 16 25 36
then after calling the method, it should contain the values
16 25 36 1 4 9
If the array contains an odd number of elements, leave the middle element in place. For example,
1 4 9 16 25 36 45
becomes
25 36 45 16 1 4 9
Step by step
Solved in 2 steps with 2 images
- 5. Write a static method largestColumnFirst() that receives as parameter a 2D array numAr,finds the column with the largest sum, and switches it with the first column. For example:6 7 9 4 8 9 7 6 4 83 2 7 4 1 → 7 2 3 4 19 4 5 8 3 5 4 9 8 3Write a Java program named RandomNumbers that creates a single-dimensional array of int of size 20 and initialize its elements with 20 random integer numbers (their range must be between 1 and 100 inclusive. Write statements in your program to display the array elements, and how many odd and even numbers are there in the array. For example, if the random numbers were stored in the array are: 83 48 89 66 40 94 31 31 12 45 45 87 10 24 78 2 28 31 52 46 Then the program should display: The random numbers are: 83 48 89 66 40 94 31 31 12 45 45 87 10 24 78 2 28 31 52 46 There are 8 odd numbers There are 12 even numbers An element in the array is a peak (max or min) if the elements before and after that element are greater than the element itself (min) or the elements before and after that element are less than the element (max). Write a method in your program called…The rotateLeft method takes an array of integers, and an integer number of places, and returns a new copy of the array that contains a "rotated" version of the input array. Rotation means that elements have been shifted leftwards by that number of places, moving elements off one end of the array and onto the other end. For example, [11, 12, 13, 14, 15] rotated left by 2 places results in [13, 14, 15, 11, 12].
- Write a Java program named RandomNumbers that creates a single-dimensional array of int of size 20 and initialize its elements with 20 random integer numbers (their range must be between 1 and 100 inclusive. a) Write statements in your program to display the array elements, and how many odd and even numbers are there in the array. For example, if the random numbers were stored in the array are:83 48 89 66 40 94 31 31 12 45 45 87 10 24 78 2 28 31 52 46Then the program should display:The random numbers are:83 48 89 66 40 94 31 31 12 45 45 87 10 24 78 2 28 31 52 46There are 8 odd numbersThere are 12 even numbersb) An element in the array is a peak (max or min) if the elements before and after that element are greater than the element itself (min) or the elements before and after that element are less than the element (max). Write a method in your program called displayPeaks that will take a single-dimensional array as parameter and display all peak elements of that array…Write a Java program named RandomNumbers that creates a single-dimensional array of int of size 20 and initialize its elements with 20 random integer numbers (their range must be between 1 and 100 inclusive. a) Write statements in your program to display the array elements, and how many odd and even numbers are there in the array. For example, if the random numbers were stored in the array are: 83 48 89 66 40 94 31 31 12 45 45 87 10 24 78 2 28 31 52 46 Then the program should display: The random numbers are: 83 48 89 66 40 94 31 31 12 45 45 87 10 24 78 2 28 31 52 46 There are 8 odd numbers There are 12 even numbersWrite a class in Java 1) Consist of two methods: a. main b. printHigherThanAverage public static void printHigherAverage(double [] numbers, double avg) The method will print all the numbers in the array, numbers, which are higher than the average. 2) In the main methods, create an Array which can contain 5 elements of type double 3) In a loopa. Ask the user for 5 values using a Scanner. b. Store the values in the arrayc. Sum the values 4) At the end of the loop: Calculate the average. Call the method printHigherAverage and pass it the array and the average.
- In the box provided, complete the static method filterArray() to return a new array containing the even numbers divisible by 10 in the input array. For example, if the input array arr looks like this: (CLO2) 1 22 11 45 55 25 71 80 8 10 0 1 2 3 4 5 6 7 8 9 Then the method returns this array: 80 10 0 1 i need code in javaWrite the method printTail() method that accepts an array of integers and an integer index as parameters and prints all the array elements starting from the index passed. For example if printTail(x,5) is invoked, it should print all the elements of the array x starting at x[5].(Java) Write a program that creates a 32-element array of random integers all from 1 to 100, inclusive. Then execute a custom method with the array as its only argument. The method should begin by using a loop to print the array elements in 4 rows and 8 columns, with all columns being five characters wide. Duplicates are okay. This same loop should determine how many integers in the array are odd numbers. After this loop ends, use this figure to declare a new array of integers named odds. Process the array again in the method, but this time with a foreach loop, and add the odd integers to the odds array. Return the odds array back to main. In main, report the size of the array and sort it ascending. Finally use a while loop to print the odd integers all on one line separated by spaces.
- A method named duplicatesCount that takes an array of double values and returns the count of numbers duplicated (i.e. numbers that appear more than once) in the array, regardless of how many times each is duplicated. For example, if the array {1.1, 9.9, 4.4, 3.3, 3.3, 9.9, 2.2, 6.6, 7.7, 1.1, 9.9} is passed to this method, it must return 3 since the numbers 1.1, 9.9, and 3.3 appear more than once in the array. 2. A method named commonCount that takes two arrays of double values and returns the count of numbers that are common between the two arrays. If an element appears more than once it must not be counted twice. For example, if the arrays {1.1, 3.3, 4.4, 6.6, 1.1, 5.5, 3.3, 6.6} and {5.5, 9.9, 6.6, 8.8, 7.7, 9.9, 5.5) are passed to this method, it must return 2 since the numbers 6.6 and 5.5 are common between the two arrays. 3. A method named overlap that takes two arrays of double values and returns a new array that contains the concatenation of them…Implement getArrayElmsInRange Method Details: getArrayElemsInRange public static int[] getArrayElemsInRange(int[] array, int lower, int upper) Returns an array with values in the range defined by lower (inclusive) and upper (inclusive). Feel free to use the getCountInRange method during the implementation of this method (See below). Parameters: array - integer array lower - lower limit upper - upper limit Returns: array with values in the range or empty array Throws: java.lang.IllegalArgumentException - if array is null or lower is greater than upper. Any error message is fine (e.g., "Invalid parameters(s)") getCountInRange Method: class Main { // this function will return the number elements in the given range public static int getCountInRange(int[] array, int lower, int upper) { int count = 0; // to count the numbers // this loop will count the numbers in the range for (int i…Write the method printTail() method that accepts an array of integers and an integer index as parameters and prints all the array elements starting from the index passed. For example if printTail(x,5) is invoked, it should print all the elements of the array x starting at x[5]. !!!!LANGUAGE: JAVA!!!!