For given two sorted stacks (of integer type) A (maximum value on top) and B (minimum value on top), write a Java method that creates a stack that is sorted (minimum value on top). Allowable stack operations are pop(), push(), size() and top(). Using arrays is not allowed.
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- Implement a simple stack in java using the scenario below. A company wishes to keep track of the order in which it employed staff. Users can enter either "f" to fire, "h" to hire or "e" to end the program. When a member of staff is employed, their employee number is added to the top of a stack when someone has to be made redundant, the last person to join the company is removed from the top of the stack. Hint: Use ArrayListWrite a method that takes as parameters two sorted stacks of integers s1 and s2 (where the lowest value is at the top) and returns a sorted stack (lowest on top) that contains the values of both s1 and s2. You are allowed to use only the stack operations such as pop, push, and top. You are allowed to use only stacks as temporary storage. No other data structures such as arrays are allowed. The header of the method is: public static Stack mergeSortedStacks (Stack s1, Stack s2) Write a main method in which you create two sorted stacks and call the above method to test it.Write a method moveUp for the ArrayBoundedStack class. The method has a parm named item (type T). moveUp finds the first occurrence of item (the occurrence closest to the top of the ti ww stack) and moves it to the top. Throw NoSuchElementException if item is not in the stack. DO NOT USE ANY METHODS OF THE STACK CLASS. For example, here is the before and after if item is "blue". "red" "blue" "green" "red" before: "purple" after: "green" "purple" "yellow" "blue" "yellow" "blue" "blue"
- IN JAVA First, Implement the method public void display() which displays the entries in a stack starting from the top. If the stack is empty, print “The stack is empty”. Add the method to ArrrayStack2.java. You do not need to modify StackInterface.java. Then, Implement a method public int remove(int n) The method removes the n top most entries for a stack . If the stack contains less than n items, the stack becomes empty. The method returns the number of items removed. Add the method to ArrrayStack2.java. You do not need to modify StackInterface.java. Then, Suppose that in the array-based stack, the array doubles in size after multiple push operations. But later on, fewer than half of the array’s locations might actually be used by the stack due to pop operations. Revise the implementation so that its array also can shrink in size as objects are removed from the stack. Accomplishing this task will require two new private methods, as follows: The first new method checks whether we…IN JAVA Suppose that in the array-based stack, the array doubles in size after multiple push operations. But later on, fewer than half of the array’s locations might actually be used by the stack due to pop operations. Revise the implementation so that its array also can shrink in size as objects are removed from the stack. Accomplishing this task will require two new private methods, as follows: The first new method checks whether we should reduce the size of the array: private boolean isTooBig() This method returns true if the number of entries in the stack is less than half the size of the array and the size of the array is greater than 20. The second new method creates a new array that is three quarters the size of the current array and then copies the objects in the bag to the new array: private void reduceArray() Implement each of these two methods, and then use them in the definition of pop()2. Write a complete Java program that provides two methods named randomInteger() and subtractPairs(). The first method should generate a stack of random integer numbers in the range of [120]. Then pass the stack to the second method that replaces every 2 consecutive elements (starting from the top) with their difference and returns the stack containing the difference values only. If the number of elements is odd, the last element in the stack should be kept as it is. For example, suppose a stack storing the following elements: Before: Bottom[15, 1, 6, 4, 12] Top Then the stack should store the following values after calling the method sumPairs(): After: Bottom[15, 5, 8] Top The number of random integers to be generated should be read from the user. Sample Output: Enter # of elements: 5 Before: Bottom [15, 1, 6, 4, 12] Top After: Bottom[15, 5, 8] Top You may use any of the following to generate the random numbers: Random class • Math.random
- My last question was not answered so I am trying again. Please solve this problem in Java. Please a create Java class that does the Pop() operation on a stack as described in the image below. The class will need to read the integers from the text file and Text file(Stack_Ints.txt): 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Sample Output: Print: stack elements print: Popped element print: updated stack elementsWrite a method called removeBelow in the class StackApplication that accepts two parameters called elem of type int and an ArrayStack of integers st. The method should remove all the elements of the stack that are below elem from the stack. Example: elem: 15 top Stack (before method call): 20 14 18 16 10 top Stack (After method call): 20 18 16 Method heading: public static void removeBelow(int elem, ArrayStack<Integer> st) type it here pleaseWrite a method called removeBelow in the class StackApplication that accepts two parameters called elem of type int and an ArrayStack of integers st. The method should remove all the elements of the stack that are below elem from the stack. Example: elem: 15 top Stack (before method call): 20 14 18 16 10 top Stack (After method call): 20 18 16 Method heading: public static void removeBelow (int elem, ArrayStack st)
- Write a method called removeBelow in the class StackApplication that accepts two parameters called elem of type int and an ArrayStack of integers st. The method should remove all the elements of the stack that are below elem from the stack. Example: elem: 15 top Stack (before method call): 20 14 18 16 10 top Stack (After method call): 20 18 16 Method heading: public static void removeBelow(int elem, ArrayStack<Integer> st)Please help with the following in Java Write a Java program create a stack with elements pushed 1, 2, 3, 4 and 5, removes the middle element. Note that you may use only push(), pop(), peek() and empty() methods of the stack.don't use others answers java 1. Write a generic static method that takes a Stack of any type element as a parameter, pops each element from the stack, and prints it. It should have a type parameter that represents the Stack’s element type.