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COSC1046-Assignment_5

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NOTE: You must include commenting in all of these assignments. The code must be neatly formatted ? marks will be deducted.;Part A: This question is to be submitted to the instructor in the form of a Word (or Open Office) document containing the Java code and appropriate screen capture(s) of the output. The file name must be in the form ASSIGN5A_YourName where ?YourName? is your last name followed by your first name with no space. Upload the file to CMS.;Problem 6.9, page 256;Version 1: Solve the problem as written in the textbook. Demonstrate that it works using 3 different arrays (1 screen shot for each).;Problem 6.7, page 256;You may find the ternary operator useful when you need to add the s to the word times. Example of pluralizing question would be S.O.P(?question? + (numQuestions>1??s?:??);Run the program three times ? providing screenshots for each run.;Problem 7.5, page 282;Test using the matrix in the chapter and another matrix of different size with double values. (A minimum of 2 screen captures required.);Part B: Write code and test the solutions for the following problems from the textbook. Submit the.java files for each question to CMS.;Problem 6.5, page 261;Problem 6.27, page 261;Include the method in a test application which uses the method.;Problem 7.13, page 285;Problem 7.25, page 290;Be prepared to answer questions about how the program works. If you can?t explain how it works, your grade will be impacted.;6.9 (Find the smallest element) Write a method that finds the smallest element in an;array of double values using the following header;public static double min(double [] array);Write a test program that prompts the user to enter ten numbers, invokes this;method to return the minimum value, and displays the minimum value. Here is a;sample run of the program;2 n;Enter ten numbers;The minimum number is: 1.5;6.7 (Count single digits) Write a program that generates 100 random integers between 0;and 9 and displays the count for each number. (Hint: Use (int)(Math.random();* 10) to generate a random integer between 0 and 9. Use an array of ten integers;say counts, to store the counts for the number of 0s, 1s,..., 9s.);7.5 (Algebra: add two matrices) Write a method to add two matrices. The header of;the method is as follows;public static double [][] addMatrix(double [][] a, double [][] b);In order to be added, the two matrices must have the same dimensions and the;same or compatible types of elements. Let c be the resulting matrix. Each element;c ij a ij + b ij For example, for two 3 * 3 matrices a and b, c is;Part b;6.5;6.27 (Identical arrays) The arrays list1 and list2 are identical if they have the same;contents. Write a method that returns true if list1 and list2 are identical;using the following header;public static boolean equals(int [] list1, int [] list2);Write a test program that prompts the user to enter two lists of integers and displays;whether the two are identical. Here are the sample runs. Note that the first;number in the input indicates the number of the elements in the list;7.13 (Locate the largest element) Write the following method that returns the location;of the largest element in a two-dimensional array.;public static int [] locateLargest(double [][] a);The return value is a one-dimensional array that contains two elements. These;two elements indicate the row and column indices of the largest element in the;two-dimensional array. Write a test program that prompts the user to enter a two-dimensional array and displays the location of the largest element in the;array. Here is a sample run;7.25 (Markov matrix) An matrix is called a positive Markov matrix if each element;is positive and the sum of the elements in each column is 1. Write the following;method to check whether a matrix is a Markov matrix.;public static boolean isMarkovMatrix(double [][] m);Write a test program that prompts the user to enter a matrix of double values;and tests whether it is a Markov matrix. Here are sample runs

 

Paper#68069 | Written in 18-Jul-2015

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