Write a java program that create a 2 dimensional array of type double of size 10 by 10.
Fill the array with random numbers using a random number generator.
Print the array contents.
Write a java program that creates a file called data.txt that uses the PrintWriter class.
Write the numbers 1 to 42 into the file. Close the file. Attach both files.
Thank you in advance
import java.util.Random; public class RandomMatric { public static void main(String[] args) { Random random = new Random(); int[][] matrix = new int[10][10]; for (int i = 0; i < 10; i++) { for (int j = 0; j < 10; j++) { matrix[i][j] = random.nextInt(1000); } } // print array for (int i = 0; i < 10; i++) { for (int j = 0; j < 10; j++) { System.out.print(matrix[i][j] + " "); } System.out.println(); } } }
import java.io.FileNotFoundException; import java.io.PrintWriter; public class WriteFile42 { public static void main(String[] args) throws FileNotFoundException { PrintWriter pw = new PrintWriter("data.txt"); for (int i = 1; i <= 42; i++) { pw.println(i); } pw.close(); } }
Write a java program that create a 2 dimensional array of type double of size 10...
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