What is the output of this program? public class Q_07{public static void main {String[] args} {int x = 2; Switch(x){case 2: x +=1; case 3: x +=2; case 4: x +=3; case 5: x +=4; System.out.println ("x1 =" + x); case 6: x ++; system out.println("x2 =" +x); case 7: x += 4; break; case 8: x--; System out println("x3 ="+x); case 9: x += 3;} System.out.println("x4 =" +x);}} Write a program that searches for a value in an array, if found replaces it with the last element of the array, given the array: int [] values = {23, 78, 14, 56, 90, 101, 32, 34}