IMMEDIATELY ASAP please

Write a recursive method named countBack (int n ). This method prints numbers from n to 0 recursively. For example, countBack (4) should display 43210. The following code has syntax error at line: [x] Vhich of the following ADT structures does NOT organize its entries according to the order in which they were added. a. priority queue b. stack C. list Which of these statements is/are true? (Select all that apply) a. Unchecked exceptions will cause a compile-time error if they are not handled. b. All the options c. NullPointerException is an example of a checked exception d. A checked exception must be handled either by re-throwing or with a try-catch block, whereas an unchecked exception handled. e. Checked exceptions will cause a compile-time error if they are not handled