1. a JFrame objects content panel is a(n)________ of type _________ A. object; container B. object; JPanel C. primitive; int D. primitive; double E. none of the above
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1. a JFrame objects content panel is a(n)________ of type _________
A. object; container
B. object; JPanel
C. primitive; int
D. primitive; double
E. none of the above
2. You have a large array that you want to be sorted In ascending order. Under what circumstances would the bubblesort
A. if the array is initially in descending order
B. if the array elements can be mapped to a linked list
C. if the array elements are already close to their eventual sorted position
D. if the array elements are string objects
E. never, heapsort will always be faster
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- Create an array of objects of the Person class, of size 4. Create three objects of the Person class, with values, and assign the objects to the array. Loop through the array and print the name, job, and email of all Personobjects. (using the Netbeans application)Create a program that will create a private jagged array with the following specifications: contains 10 rows the length of the first row is 10, next row is 9…and the last row is 1 each index contains the sum of its indexes filenames are java (Class1 and SurnameLab2Demo.java (Class2) (Surname will be the student’s surname) Class1 only contains the standard setter and getter method Class2 contains a method for setting the columns of each row Class2 contains a method for getting the sum of indexes Class2 contains a method for printing the outputActivity 1. Write a program that creates a 5 element array named arrayOfFive. 2. You must ask the user for five integers, one at a time, using a Scanner object (use a loop). 3. You must store each user input into the arrayOfFive. 4. Then print the arrayOfFive contents. Reminder: User input does not need validation. Output should look like: Enter integer #1: 9 Enter integer #2: 5 Enter integer #3: 7 Enter integer #4: 3 Enter integer #5: 4 You entered: 9 5 7 3 4
- 19. A two-dimensional array is frequently called a matrix and such a matrix is usually displayed in a row X col format. Write a method, which displays a 3 X 4 matrix to the monitor, in a format like: sample data: 10 11 12 13 14 15 16 17 18 19 20 21 Complete method displayMatrix below. // precondition: // postcondition: 11 mat is a non-empty 2D array of int values. displayMatrix displays the elements of 2D array mat in Row X Col format. public static void displayMatrix(int[][] mat)Given these three ArrayLists: ArrayList collectionA = new ArrayList(); ArrayList collectionB = new ArrayList(15); ArrayList collectionC = new ArrayList(25) ; After adding 390 items to each collection, answer the following two questions: Blank 1: Which ArrayList has the largest capacity for the array data member being used internally for storing the items in the object? Blank 2: What is the capacity for the object in blank one? Blank # 1 A Blank # 2 ACreate a file named StudentArrayList.java, within the file create a class named StudentArrayList. This class is meant to mimic the ArrayList data structure. It will hold an ordered list of items. This list should have a variable size, meaning an arbitrary number of items may be added to the list. Most importantly this class should implement the interface SimpleArrayList provided. Feel free to add as many other functions and methods as needed to your class to accomplish this task. In other words, the class StudentArrayList must implement the interface SimpleArrayList. You have to write the code for each of the functions specified in the SimpleArrayList interface. Make sure the class that implements SimpleArrayList is named "StudentArrayList" or else the test code will not compile. All of the documentation for the function guidelines may be found in the interface. This assignment can be a lot of programming if you do not follow the DRY (Don't Repeat Yourself) programming principle.…
- Instructions use the clock class to build an array of 10 AppointmentTime objects , and then do the needed operations on the array: initialization, reading, printing, finding the maximum AppointmentTime. build another array of Clock type name it Leaving Time , then copy the AppointmentTime to it. Use methods to perform the above requests, and try to use fo.each loop as much as you can.Write a java application which initializes an array with ten random integers between 1 and 6. Write two methods: 1. arraySwap: this method should accept an integer array and swap the first and the last item. 2. findMinimum: this method should accept the array and return the minimum value of that array You should comment and follow javaDoc for both methods. Your main method should test each of these methods.The editTemperatures() method takes in two parameters: integer array tempData and integer numMore. Complete editTemperatures() to create a new array called arrayCopy with the same elements as tempData, and the size increased by numMore. Ex: If the input is: 10 48 49 18 3 then the output is: 10 48 49 18 0 0 0 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Scannerscnr=newScanner(System.in); int[] degreesFahrenheit=newint[4]; intinput; inti; for (i=0; i<degreesFahrenheit.length; ++i) { degreesFahrenheit[i] =scnr.nextInt(); } // Read number of values to increase array size by input=scnr.nextInt(); degreesFahrenheit=editTemperatures(degreesFahrenheit, input); for (i=0; i<degreesFahrenheit.length; ++i) { System.out.print(degreesFahrenheit[i] +" "); } } }
- Create an ArrayList, Named it Husnain that can hold Integers, and fill each slot with a different random value from 1-50. Display those values on the screen, and then prompt the user for an integer to search through the ArrayList, and if the item is present, say so. It is not necessary to display anything if the value was not found. If the item is in the ArrayList multiple times, it's okay if the program prints the message more than onceJAVA LANGUAGE Create an ArrayList, Name it YourRegNoandName that can hold Integers, and fill each slot with a different random value from 1-50. Display those values on the screen, and then prompt the user for an integer to search through the ArrayList, and if the item is present, say “FOUND”. It is not necessary to display anything if the value was not found. If the item is in the ArrayList multiple times, it's okay if the program prints the message more than once. ALSO SCREENSHOT THE OUTPUT1. Declare an array to save 4 Dog objects. The Dog class is provided below. Look into the Dog class and find what attributes are needed for a dog object. Then initialize five dogs with the following information: Lily, 5 years old Jacob, 2 years old Sugar, 8 years old Bush, 3 years old 2. Print out every dog using a for loop (use either regular for loop or for-each loop, your choice). But you may find when you print out, the name and age are not displayed. Why? 3. Fix this problem by implementing the toString method in the Dog class. Dog Class: public class Dog { private String name; private int age; public Dog(String name, int age) { this.name = name; this.age = age; } public void setName(String name) { this.name = name; } }