Question: Write and execute a JAVA program to perform the following tasks. Create separate files for each of the tasks in NetBeans given below. 1) Write

Write and execute a JAVA program to perform the following tasks. Create separate files for each of the tasks in NetBeans given below. 1) Write a Java program to find if a square matrix is symmetric. (a symmetric matrix is a square matrix that is equal to its transpose) 2) Write a Java program to do the following a) Read two-dimensional array (3 x 3) b) Find the diagonal elements of the array c) Find the sum of the diagonal elements 3) Write a Java program to do the following a) Read the names of books, authors and book numbers of all books in a library. b) Check whether the given book number is present in the array, if it is not, print the name of the book and the author's name

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