midtermkey

midtermkey - CSI 201 KEY KEY KEY Midterm KEY KEY KEY 1 a...

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CSI 201 KEY KEY KEY Midterm KEY KEY KEY October 17, 2008 1 v 2.00 1. a) Write a while loop that will print out the values from 0 to 100, inclusive, and then b) rewrite it as a for loop that will do the same thing. (15 points) int index = 0; while (index <= 100) { System.out.println(index); index = index + 1; } for (int index = 0; index <= 100; index = index + 1) { System.out.println(index); } 2. Assume you have the following code: int[] numberArray = {2, 2, 6, 42, 1, 14, 0, 42, 23}; int sum = 0; double average = 0.0; // The code for your answer should go here System.out.println("The average is " + average); a) Write a loop (either while or for) to insert into this code that will add up the values in the array and the result in the variable sum. b) Divide the sum by the number of elements in the array to create the average. Remember the average should be a floating point quantity. (20 points) int index = 0; while (index < numberArray.length) { sum = sum + numberArray[index]; index = index + 1; } average = sum/numberArray.length;

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midtermkey - CSI 201 KEY KEY KEY Midterm KEY KEY KEY 1 a...

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