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Let's work on some basic skills by creating a program that contains a few experiments with arrays. If you are asked to print out a value, be sure to print a label that indicates what the value represents, unless otherwise indicated. For example, if you are asked to print a variable z, the output might look like this: z: 8.0 Create a new Eclipse project. Download the source code file Array_Lab1a.java. Import the source code file into your project. Add your name and section number in the comment block near the top, and then add Java statements that perform each of the following tasks: a) Create an array x of 20 random double values, each between 1.0 and 100.0 (i.e., declare/create the array, then populate it with 20 random doubles). b) Output the number of items in the array by printing the expression x.length. c) Output the first array item, x[0]. d) Output the last array item. Be careful to choose the right index. e) Print the expression x [x.length - 1]. Why is this value the same as in part (d)? f) Use a for loop to print all the values in the array without labels. g) Use a loop to print all the values in the array with labels to indicate what each element is. h) Use a for loop to print all the values in the array in reverse order with labels

Let's work on some basic skills by creating a program that contains a few experiments with arrays. If you are asked to print out a value, be sure to print a label that indicates what the value represents, unless otherwise indicated. For example, if you are asked to print a variable z, the output might look like this: z: 8.0 Create a new Eclipse project. Download the source code file Array_Lab1a.java. Import the source code file into your project. Add your name and section number in the comment block near the top, and then add Java statements that perform each of the following tasks: a) Create an array x of 20 random double values, each between 1.0 and 100.0 (i.e., declare/create the array, then populate it with 20 random doubles). b) Output the number of items in the array by printing the expression x.length. c) Output the first array item, x[0]. d) Output the last array item. Be careful to choose the right index. e) Print the expression x [x.length - 1]. Why is this value the same as in part (d)? f) Use a for loop to print all the values in the array without labels. g) Use a loop to print all the values in the array with labels to indicate what each element is. h) Use a for loop to print all the values in the array in reverse order with labels

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Lab 23.1: Basic Array Skills Let's work on some basic skills by creating a program that contains a few experiments with arrays. If you are asked to print out a value, be sure to print a label that indicates what the value represents, unless otherwise indicated. For example, if you are asked to print a variable z, the output might look like this: z: 8.0 Create a new Eclipse project. Download the source code file Array_Lab1a.java. Import the source code file into your project. Add your name and section number in the comment block near the top, and then add Java statements that perform each of the following tasks: a) Create an array x of 20 random double values, each between 1.0 and 100.0 (i.e., declare/create the array, then populate it with 20 random doubles). b) Output the number of items in the array by printing the expression x.length. c) Output the first array item, x[0]. d) Output the last array item. Be careful to choose the right index. e) Print the expression x [x.length 1]. Why is this value the same as in part (d)? f) Use a for loop to print all the values in the array without labels. g) Use a loop to print all the values in the array with labels to indicate what each element is. h) Use a for loop to print all the values in the array in reverse order with labels
Transcribed Image Text:Lab 23.1: Basic Array Skills Let's work on some basic skills by creating a program that contains a few experiments with arrays. If you are asked to print out a value, be sure to print a label that indicates what the value represents, unless otherwise indicated. For example, if you are asked to print a variable z, the output might look like this: z: 8.0 Create a new Eclipse project. Download the source code file Array_Lab1a.java. Import the source code file into your project. Add your name and section number in the comment block near the top, and then add Java statements that perform each of the following tasks: a) Create an array x of 20 random double values, each between 1.0 and 100.0 (i.e., declare/create the array, then populate it with 20 random doubles). b) Output the number of items in the array by printing the expression x.length. c) Output the first array item, x[0]. d) Output the last array item. Be careful to choose the right index. e) Print the expression x [x.length 1]. Why is this value the same as in part (d)? f) Use a for loop to print all the values in the array without labels. g) Use a loop to print all the values in the array with labels to indicate what each element is. h) Use a for loop to print all the values in the array in reverse order with labels
to indicate what each element is. Lab 23.2: More Array Skills and Array Algorithms Let's continue to work on our fundamental array skills with a few more experiments. As in Lab 23.1, if you are asked to print out a value, be sure to print a label that indicates what the value represents, unless otherwise indicated. For example, if you are asked to print a variable z, the output might look like this: z: 8.0 Download the source code file Array_Lab1b.java into your project. Import the source code file into your project. Add your name and section number in the comment block near the top, and then add Java statements that perform each of the following tasks: a) Declare/create an array x of 20 random doubles (as in part (a) of Lab 23.1). b) Use a for loop to compute and output the total of all the elements in array x. c) Compute and output the minimum value in x. Your code should find this value by: 1. setting a double variable (e.g., names smallest) to the first array element 2. using a loop and examining each element in the array, starting with the second array element: If that element is smaller than smallest, reset smallest to that element. d) Repeat part (c), but output the minimum value and its index in the array (instead of just the minimum value).
Transcribed Image Text:to indicate what each element is. Lab 23.2: More Array Skills and Array Algorithms Let's continue to work on our fundamental array skills with a few more experiments. As in Lab 23.1, if you are asked to print out a value, be sure to print a label that indicates what the value represents, unless otherwise indicated. For example, if you are asked to print a variable z, the output might look like this: z: 8.0 Download the source code file Array_Lab1b.java into your project. Import the source code file into your project. Add your name and section number in the comment block near the top, and then add Java statements that perform each of the following tasks: a) Declare/create an array x of 20 random doubles (as in part (a) of Lab 23.1). b) Use a for loop to compute and output the total of all the elements in array x. c) Compute and output the minimum value in x. Your code should find this value by: 1. setting a double variable (e.g., names smallest) to the first array element 2. using a loop and examining each element in the array, starting with the second array element: If that element is smaller than smallest, reset smallest to that element. d) Repeat part (c), but output the minimum value and its index in the array (instead of just the minimum value).
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