Write a program whose input is two integers and whose output is the two integers swapped. Place the values in an array, where x is position 0 and y is position 1.
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![Write a program whose input is two integers and whose output is the two integers swapped. Place the values in an array, where x is
position 0 and y is position 1.
Ex: If the input is:
3 8
then the output is:
8 3
Your program must define and call a method:
public static void swapValues (int[] values)
354532.2042412.qx3zay7
LAB
6.28.1: LAB: Swapping variables
0/10
ACTIVITY
LabProgram.java
Load default template..
9.
System.out.println(arrays.toString(values));
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temp=values[0];
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values[0]=values[1];
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values[1] =temp;
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System.out.println(arrays.toString(values));
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public static void main(String[] args) {
int [] arr = {2,4};
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swapValues (arr);
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24
25 }
Run your program as often as you'd like, before submitting for grading. Below, type any needed
input values in the first box, then click Run program and observe the program's output in the
Develop mode
Submit mode
second box.
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- 1. Write a program that calls a method that takes a character array as a parameter (you can initialize an array in the main method) and returns the number of vowels in the array. Partial program is given below. public class CountVowels{ public static void main(String[] args){ char[] arr= System.out.print("There are "+vowels(arr)+" vowels in the array");Write the following method to test whether all the points in the array points are on the same line: public static boolean sameLine(double[][] points) Write a program that prompts the user to enter five points and displays whetherthey are on the same line. Here are sample runs: Enter five points: 3.4 2 6.5 9.5 2.3 2.3 5.5 5 −5 4 ↵EnterThe five points are not on the same lineEnter five points: 1 1 2 2 3 3 4 4 5 5 ↵EnterThe five points are on the same lineFor Beginners Java: Write a program that ask the user to enter a list of positive scores until the user enters a negative score to terminate the input. You need to store these scores in an array. You can assume the maximum number of scores the user may enter is 50. However, you need to keep track of the actual number of scores entered. Write 2 methods: 1. calculateAverage(): this method takes the list of scores and return the average score. 2. countPerfectScores(): this method takes the list of scores and return the number of perfect scores (100). The main program reads the input and calls these methods and print the results. Please make sure you write a comment line to document what your method does.
- 1. Write a method that takes a rectangular two-dimensional array of type int and returns a value of type int. The method returns the number of rows with positive sum. A row has a positive sum if the sum of all its elements is larger than 0. public static int countPositiveSum (int[][] in) Taken array Result 1. -3 17 -5 -5 14 5 -2 30 -19 -8 -8 1 3 -1 -4 78 -3 -5 -1 -1 3 -4 2.Write a java program to create prices of Shopping Cart items that provides a menu: 1: Create a new price for each item in the Cart list 2: Print the price of a particular item 0: Exit Enter your choice: Define an array: ShoppingCart which stores prices of items. Define another array: ItemsNames of the same size that stores names of such items. Assume that there are 10 items. When the user presses 1, the program call a method that creates a new price for each item in the array using random numbers between 1 and 1000 AED [not inclusive]. If the user presses 2, the program call a method that prints the name of the requested item and its price. Use switch case statement for choosing among the menu options. Make a method to display the menu to give the user the possibility to use the menu as much as he/she wants.Write a Java method that returns a new array by eliminating the duplicate values in the array using the following method header: public static int[] eliminateDuplicates(int[] list) Write a Java test Program that reads in ten integers, invokes the method, and displays the result. Here is the sample run of the program: Enter ten numbers: 1 2 3 2 1 6 3 4 5 2 -Enter The distinct numbers are: 1 2 3 6 4 5
- Write a java program to create prices of Shopping Cart items that provides a menu: 1: Create a new price for each item in the Cart list 2: Print the price of a particular item 0: Exit Enter your choice: Define an array: ShoppingCart which stores prices of items. Define another array: ItemsNames of the same size that stores names of such items. Assume that there are 10 items. When the user presses 1, the program call a method that creates a new price for each item in the array using random numbersbetween 1 and 1000 AED [not inclusive]. If the user presses 2, the program call a method that prints the name of the requested item and its price. Use switch case statement for choosing among the menu options. Make a method to display the menu to give the user the possibility to use the menu as much as he/she wants.Implement getEvens method Method Details getEvens public static int getEvens(int[] array, int[] result) Initializes the out parameter result with even values found in array Parameters: array - integer array result - integer array Returns: Number of even values found Throws: java.lang.IllegalArgumentException - if array or result (or both) are null, or if result's length is less than array's length. Any error message is fine (e.g., "Invalid parameters(s)")TASK 1 Write a Java method that returns a new array by eliminating the duplicate values in the array using the following method header: 2 public static int[] eliminateDuplicates (int [] list) Write a Java test Program that reads in ten integers, invokes the method, and displays the result. Here is the sample run of the program: Enter ten numbers: 1 2 3 2 1 6 3 4 5 2 JEnter The distinct numbers are: 1 2 3 6 4 5
- 3. write a method called insert that inserts an element into an integer array. It should take 3 parameters: an int array, the number to be inserted and the index it should be inserted at. It should return a new array that has the element inserted at the index (the new array should have a length 1 longer than the original array). Sample code int[] a = {1,2,3,4,5}; int[] inserted = insert (a,9,0); printArray (inserted); int [] a = {1,2,3,4,5}; int[] inserted = insert (a,9,3); printArray(inserted); int [] a = {1,2,3,4,5}; int[] inserted = insert(a,9,5); | printArray(inserted); Sample output 912345 123945 1234593. write a method called insert that inserts an element into an integer array. It should take 3 parameters: an int array, the number to be inserted and the index it should be inserted at. It should return a new array that has the element inserted at the index (the new array should have a length 1 longer than the original array). Sample code int [] a = {1,2,3,4, 5}; int[] inserted = insert (a,9,0); printArray (inserted); int[] a = int[] inserted = insert(a,9,3); printArray (inserted); int[] a = {1,2,3,4,5}; int [] inserted = insert (a,9,5); printArray(inserted); Sample output 9123 4 5 {1,2,3,4,5}; 123945 1234 59Write a method that returns a new array by eliminating theduplicate values in the array using the following method header:public static int[] eliminateDuplicates(int[] list)Write a test program that reads in 10 integers, invokes the method, and displaysthe distinct numbers separated by exactly one space. Here is a sample run of theprogram: Enter 10 numbers: 1 2 3 2 1 6 3 4 5 2 ↵EnterThe distinct numbers are: 1 2 3 6 4 5