Write a java program to reverse a user entered array in groups.
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- Write a code in java for bookstore where is object sequentially aggregated, list of book name, year of publication and name of publisher, collected by array list and implement the iteratorWrite a java code that sorts a list of n items by dividing it into three sublistsof about n/3 items, sorting each sublist recursively and merging the threesorted sublists. Analyze your algorithm, and give the results under ordernotation.Write a Java program to implement sequential search. Create a String array in main method and initialize it with 5 different names. Now take any name from the user, find whether that name is present in that array or not, and print the position of that name in the array if found. Write a search method to sequentially search the name from the array. Invoke the search method from the main method. The array and the name to be searched should be passed into the search method as parameters. Sample input & output:[Let’s assume that the 5 names are Diana, Becker, Ann, Eve, and Cory]Enter the name: CoryThe name is found at 5th position.Enter the name: Donald The name is not found.Now write a Java program to implement binary search for the above problem. [Hint: You can use equals() and compareTo() methods of String class.]
- Write a java while loop that loops through an array of type int with a size of 6, and adds up every other element in the array and prints the sum.Write a program in java that prints an array using one loop even if it's a 2 dimentional array while using recursion. Include the main program and a sample and all.Write a Java program to find continuous sub array of the given array whose sum is equal to a given number. For example, If {12, 5, 31, 9, 21, 8} is the given array and 45 is the given number, then you have to find continuous sub array in this array such that whose elements add up to 45. In this case, {5, 31, 9} is such sub array whose elements add up to 45.
- Java. Implement a method that will return a String with an array's elements separated by spaces. The mehod will recieve three parameters: the integer array, a start index, and an end index. Both start and end are includive. The method's signature is as follows: public static String printRange(int [], int, int) - make the method public to faciliate testing - If the indexes are outside the bounds of the array, the method should return "Invalid Range." Otherwise, the method will return a String containing one integer after the other on the same line separated by one space. Example 1: Given {4,1,2,36,6}, 1, 3 as the parameters; the method should return "1 2 36" Example 2: Given {4,1,2,36,6}, 0, 7 as the parameters; the method should return "Invalid Range"Implement quicksort in a JAVA programming language. The first version will use the first element of the array as the pivot. Please help me with a Java code , It needs to take the input from a file of 100 data elements. Can someone please help me with this coding problem. I have the data set file , but I cannot upload it in here. Kindly help me with the code.FOR JAVA Write a Java method that takes two 2 dimensional int arrays (a and b) and a 2 dimensional boolean array (c) where all three arrays have the same size. Your method should return an array (result) such that, if a partic- ular element in c is true, then the corresponding (same indexed) element in result must be the multiplication of the the corresponding elements of a and b. If the element in c is false, then the the corresponding element in result must be the negative of multiplication of the the corresponding element in a and b. For example ifa = {{1,2,3},{4,5}},b = {{1,2,1},{0,2}} andc = {{true,false,true},{false,true}}, then the result should be result={{1, -4, 3}{0, 10}}.
- write a java program (method) to store all arrangments(permuations) of a given string in an array. note: Here it has to be mentioned that the permutations can also be of shorter length than the list of letters and that no letter is to be repeated. For example, if the initial list of letters is "STOP", then "TOP" and "TOPS" are both valid permutations, but "STOPS" isn't.In Java Create a simple program that asks the user for a row and column size for a 2-D integer array, then haveThe program create such an array. At this point this array’s cells should be filled with zeros sincenothing has been done to change the cell values.Next, have that program dynamically adapt to the sizes of the array (that were provided by the user) andfill the array with numbers ascending from 1 → n (n being the number of the nth cell in that 2-D Arraydepending on the size). Please then print the array out. Remember, you cannot just print an arrayout, you have to use loops and print each cell individually.Please refer to the sample output below for visualization and match its style.As always:• Remember, the class name should be Lab8B.• The user input is indicated in bold.Sample Output #1:Please enter the number of rows: 4Please enter the number of columns: 4I have 4 rows and 4 columns. I need to fill-up 16 spaces.The 4x4 array:1|2|3|4|5|6|7|8|9|10|11|12|13|14|15|16|Sample…Implement a city database using ordered lists. Each database record contains the name of the city (a string of arbitrary length) and the coordinates of the city expressed as integer x and y coordinates. Your database should allow records to be inserted, deleted by name, and searched by name. Another operation that should be supported is to print all records within a given distance of a specified point/coordinate. The order of cities should be alphabetically by city name. Implement the database using: an array- based list implementation. By using JAVA.