Chapter 6, Problem 3PE

Program Plan Intro

Program plan:

FindLargestSmallestArray.java

• Create a class named “FindLargestSmallestArray”.
  • Declare and initialize the array “double[] numbers = new double[LENGTH];” elements with the size “100”.
  • Assign the current “size” of the array as “0”.
  • Using print statement enter the input values up to “100”.
  • Using scanner class, create an object “in” for reading the input values of various types “Scanner in = new Scanner(System.in);”.
  • The “while” loop is used to read each input and store it into the array “numbers” and it increments the “size” value at each iteration.
    • At the end, the values will be stored into the “numbers” array.
  • Next, declare an array variable called “largest” and assume the first element of an array as largest for finding the largest value “double largest = numbers[0]; ” and it stores the first position value of the array “numbers[0] ” into the variable “largest”.
  • Similarly, declare an array variable called “smallest” and assume the first element as smallest for finding the smallest value “double smallest = numbers[0]; ” and it stores the first position value of the array “numbers[0] ” into the variable “smallest”.
  • Inside the “for” loop, at each iteration,
    • The first conditional statement “if (numbers[i] > largest)” checks whether the number stored in the initial array “numbers[0]” is greater than largest value or not.
      • If the condition is true, the larger value will be stored in the “largest” variable.
    • The second conditional statement “if (numbers[i] < smallest)” checks whether the number stored in the initial array “numbers[0]” is lesser than smallest value or not.
      • If the condition is true, the smaller value will be stored in the “smallest” variable.
  • Inside the “for” loop, at each iteration,
    • The first conditional statement “if” prints and marks the largest value in the array.
    • And the second conditional statement “if” prints and marks the smallest value in the array.