Declare an array to hold eight integers. Use a for loop to add eight random integers, all in the range from 50 to 100, inclusive, to this array. Duplicates are okay. Next, pass the array to a method that sorts the array and returns another array containing only the largest and smallest elements in the original array. Print these two values in main. Then use a foreach loop to display all elements of the sorted array on one line separated by a single space. This latter loop should also count the odd and even numbers in the array and determine the sum of all elements in the array. SAMPLE OUTPUT The lowest element is 59 The highest element is 96 Here is the array 59 64 76 77 80 88 91 96 Evens: 5, odds: 3 Total: 631
1. Declare an array to hold eight integers. Use a for loop to add eight random integers, all in the range from 50 to 100, inclusive, to this array. Duplicates are okay. Next, pass the array to a method that sorts the array and returns another array containing only the largest and smallest elements in the original array. Print these two values in main. Then use a foreach loop to display all elements of the sorted array on one line separated by a single space. This latter loop should also count the odd and even numbers in the array and determine the sum of all elements in the array.
SAMPLE OUTPUT
2. Write a method named sumInts that can take a variable number of int arguments (see Section 7.9) and return the sum of these arguments. The ints to be summed up must be entered as command line arguments. Command line arguments can be simulated in Eclipse. Watch the video. In the main method, display the ints that were entered on the command line. Then execute sumInts and display the sum it returns.
TWO SAMPLE OUTPUTS
Passing [1, 2, 3, 4, 5]
Sum is 15
Passing [10, 20, 30]
Sum is 60
3. Write a program that simulates rolling two dice. Prompt the user to enter the number of dice rolls. Use a loop to repeatedly call a method that simulates a dice roll and returns the total of the two dice to main. Keep track of the rolls in an array in main, and end the program by showing the results of the rolls.
SAMPLE OUTPUTS
4. Create an ArrayList of strings to store the names of celebrities or athletes. Add five names to the list. Process the list with a for loop and the get() method to display the names, one name per line. Pass the list to a void method. Inside the method, Insert another name at index 2 and remove the name at index 4. Use a foreach loop to display the arraylist again, all names on one line separated by asterisks. After the method call in main, create an iterator for the arraylist and use it to display the list one more time. See Sample Output.
SAMPLE OUTPUT
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