Slide 1Slide 2Slide 3Slide 4Slide 5Slide 6Slide 7Slide 8Slide 9RepetitionTypes of Loops•Counting loop–Know how many times to loop•Sentinel-controlled loop–Expect specific input value to end loop•Endfile-controlled loop–End of data file is end of loop•Input validation loop–Valid input ends loop•General conditional loop–Repeat until condition is metwhilewhile(condition){statements}whileint i = 0; //initialization of control variablewhile(i < end_value) //condition{System.out.println(“Number “ + i);i++; //update – DO NOT FORGET THIS!}for for(int i = 0; i < end_value; i++) {System.out.println(“Number “ + i);}Sentinel-controlledimport java.util.Scanner;public class Loops { public static void main(String[] args) {int input;Scanner s = new Scanner(System.in);System.out.println("Enter number - 0 to quit: ");input = s.nextInt();while(input != 0) { System.out.println("Your number is " + input); System.out.println("Enter number - 0 to quit: "); input = s.nextInt();} }}Input Validationimport java.util.Scanner;public class Loops { public static void main(String[] args) {int input;Scanner s = new Scanner(System.in);System.out.println("Enter number - 0 to 100: ");input = s.nextInt();while(input < 0 || input > 100) { System.out.println("Your number is out of range"); System.out.println("Enter number - 0 to 100: "); input = s.nextInt();} }}do-whileimport java.util.Scanner;public class Loops { public static void main(String[] args) {int input;Scanner s = new Scanner(System.in);do { //loop will always execute at least once! System.out.println("Enter number - 0 to 100: "); input = s.nextInt();} while(input < 0 || input > 100); }}Exercises1. Ex5.14 – Write a while loop that verifies that the user enters a positive integer value.2. Ex5.15 – Write a do loop that verifies the user enters an even integer value.3. Ex5.17 – Write a for loop to print the multiples of 3 from 300 down to 3.4. PP5.15 – Design and implement an application that reads a string from the user, then determines and prints how many of each lower-case vowel (a, e, i, o, u) appear in the entire string. Have a separate counter for each vowel. Also count and print the number of nonvowel
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