Answer Happy

public class Questions {
public static void main(String[] args){ // TODO Auto-generated methodstub int[] arr = { 7, 6, 4, -1, 3,-4 }; System.out.println(sumNegative(arr, 0)); }
// Number recursion // This method should multiply all the numbersfrom 1 to n. // e.g. productFirstN(5) -> 5*4*3*2*1 =120 public static int productFirstN(int n) { return -10; }
// This method should add all the odd numbersfrom 1 to n. // e.g. productFirstN(11) -> 11 + 9 + 7 + 5 +3 + 1 public static int sumOdds(int n) { return 0; }
// This method should add the square of allnumbers from 1 to n. // e.g. productFirstN(4) -> 4*4 + 3*3 + 2*2 +1*1 public static int sumSquares(int n) {
return 0; }
// This method should return the nth power of10 // e.g. power10(5) -> 10*10*10*10*10 public static int power10(int n) { return -10; }
// Digit recursion // This method should count all odd digits inn // e.g. countOdd(12345) -> 3 public static int countOdd(int n) { return -10; }
public static int prodOdd(int n) { return 0; }
// This method should sum all even digits inn // e.g. sumEven(1234) = 2 + 4 public static int sumEven(int n) { return 0; }
// This method should count all the 7's inthe number n // e.g. countSeven(172737) -> 3 public static int countSeven(int n) { return -10; }
// Arrays recursion // This method should return the sum of allnegative numbers in arr public static int sumNegative(int[] arr, int i){ return -10; }
// This method should return the product ofall numbers in arr which // are greater than min public static int productGreaterThan(int[] arr,int i, int min) { return -10; }
// This method should add 1 to every entrywithin arr public static void plusOne(int[] arr, int i){ return 0; }
}