we have seen arrays that will be in java language, but we have not seen arraylist vectors or anything catch-try. We didnot see. .split in string, we saw copying pass by value in arrays, in short, it is simple code as if a student wrote

4/8 Then, the given number is valid! Example 2: invalid credit card number Suppose that the following number is given as the input: 8273 1232 7352 0569 Double the second digits, starting from the right 7253 2262 5312 0539 Sum the digits 7+2+5+3+2+2+6+2+5+3+1+2+0+5+3+9 = 57 57 is not evenly divisible by 10, so this number is not valid! Your program must have the following methods: public static void main(String[] args) Main method will take the input from user. Then it will invoke validateNumber() method and print the result. public static boolean validateNumber (String number) . Check if a given number (String) is valid or not Then, the method should return the result (boolean) to the main() method. Example Run 7634 78KS Invalid Input ! Example Run 2 77891 Invalid Input ! Example Run 3 4539 1488 0343 6467 DNumber: 4 3 1_8_@_4_66 LNumber: 8569247893833437 Number is valid Example Run 4 8273 1232 7352 0569 DNumber:8_7_1_3_7_5_@_6_ LNumber:7253226253120539 Number is Invalid Example Run 42 123 4598 DNumber:_2_2_4_9 LNumber:441438598 Number is Invalid Example Run 6 3 89 23 1234 DNumber:_8_2_1_3_ LNumber: 379432264 Number is valid 3. Write a program that takes an input letter and outputs it in a diamond shape. Given a letter, it prints a diamonds widest point