1. Write a Java program that print out number of days and the name of a given month. The user will enter the number of the month and the year Test Data: Input a month number: 2 Input a year: 2021 Output: February 2021 has 28 days 2. Write a java program where you ask the user to enter a word and check whether it start with a vowel alphabet or consonant. If its vowel prints out pattern of alphabets V using else print C. For example, if the input is "apple": then the output should like 3. Write a java program that includes two classes - First class named MatrixSum. Define in this class a method sumMArr(double[][] m ) that will sum all the numbers in a given two-dimensional array and display the summation. - Second class named Test that include a main method. In the main method the user will be asked to enter values of 3-by3 matrix as row by row. All values will be saved in a two-dimensional array. sumMArr should be called to calculate the sum of the entered matrix