Write a method that checks whether the diagonal joining the upper-left and the lower-right corners of a tic-tac-toe board are all the same. TicTacToe.java 1 public class TicTacToe 2 { 3 /** * Return true if all elements on the diagonal joining the upper-left * and the lower-right corners all the same. * @param board a 3 x 3 array of String * @return true if all elements are the same. */ public static boolean checkUpperLeftToLowerRight(String[][] board) { 4 5 6 7 8. 9 10 11 return ...; } 13 } 12

Write a method that checks whether the diagonal joining the upper-left and the lower-right corners of a tic-tac-toe board are all the same. TicTacToe.java 1 public class TicTacToe 2 { 3 /** * Return true if all elements on the diagonal joining the upper-left * and the lower-right corners all the same. * @param board a 3 x 3 array of String * @return true if all elements are the same. */ public static boolean checkUpperLeftToLowerRight(String[][] board) { 4 5 6 7 8. 9 10 11 return ...; } 13 } 12

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Method Details: public static java.lang.String getArrayString(int[] array, char separator) Return a string where each array entry (except the last one) is followed by the specified separator. An empty string will be return if the array has no elements. Parameters: array - separator - Returns: stringThrows:java.lang.IllegalArgumentException - When a null array parameter is provided
A class Date has methods intgetMonth() and intgetDay(). Write a method public boolean has3OnSameDay(Date[] birthdays) that returns true if at least three birthdays in the array fall on the same date. Your method should work in O(n) time, where n = birthdays.length.
Write a Java method (do not write a class, only the method) with the following signature: Return type: void Parameters: 2D integer array Name: printDiagonal Implement the method code that will print out the values of the 2D array along the Diagonal from left to right. For example, if the array had the following values: 56 78 98 21 33 55 98 44 11 The method should print to the console: 56,33,11 The above 2D array example is only given for you to understand the problem Do not hard code the values in your solution or assume the array is the same as the given data. Your method should work for all 2D integer arrays.
Write a method that takes a rectangular two-dimensional array of type int. The method returns true if the sum of the even elements of the parameter array are larger than the sum of the odd elements, otherwise the method returns false. public static boolean sum(int[]0 in) Taken array Result 1 -3 17 5 -2 30 true 1 3 -1 -1 -3 -4 7 -1 10 false -1 3 -4 15
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2. Write a method that takes a rectangular two-dimensional array of type int and returns a valu of type int. The method returns the number of rows with negative sum. A row has a negative s if the sum of all its elements is less than 0. public static int countNegativeSum(int[][] in) Taken array Result 1 -3 17 -5 -5 14 -5 -2 30 -19 -8 -8 1 1 3 -1 -4 78 8 -3 -5 -1 -1 3 -4