Write a program, Loopy2, that uses a loop to collect an arbitrary number of integers from the
user (until they enter “Q” like in the lecture slides) and stores those integers in an ArrayList.
Then print out the values in the ArrayList.
Solution
Loopy2.java
import java.util.ArrayList;
import java.util.Scanner;
public class Loopy2 {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
ArrayList list = new ArrayList();
System.out.println(\"Enter an arbitrary number of integers: \");
for(;;){
String s = scan.next();
if(s.equalsIgnoreCase(\"Q\")){
break;
}
else{
list.add(Integer.valueOf(s));
}
}
System.out.println(\"ArrayList values are: \");
for(int i=0;i < list.size(); i++){
System.out.println(list.get(i));
}
}
}
Output:
Enter an arbitrary number of integers:
1
2
3
4
5
Q
ArrayList values are:
1
2
3
4
5.
Write a program, Loopy2, that uses a loop to collect an arbitrary nu.pdf
1. Write a program, Loopy2, that uses a loop to collect an arbitrary number of integers from the
user (until they enter “Q” like in the lecture slides) and stores those integers in an ArrayList.
Then print out the values in the ArrayList.
Solution
Loopy2.java
import java.util.ArrayList;
import java.util.Scanner;
public class Loopy2 {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
ArrayList list = new ArrayList();
System.out.println("Enter an arbitrary number of integers: ");
for(;;){
String s = scan.next();
if(s.equalsIgnoreCase("Q")){
break;
}
else{
list.add(Integer.valueOf(s));
}
}
System.out.println("ArrayList values are: ");
for(int i=0;i < list.size(); i++){
System.out.println(list.get(i));
}
}
}
Output:
Enter an arbitrary number of integers:
1
2
3
![Write a program, Loopy2, that uses a loop to collect an arbitrary number of integers from the
user (until they enter “Q” like in the lecture slides) and stores those integers in an ArrayList.
Then print out the values in the ArrayList.
Solution
Loopy2.java
import java.util.ArrayList;
import java.util.Scanner;
public class Loopy2 {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
ArrayList list = new ArrayList();
System.out.println("Enter an arbitrary number of integers: ");
for(;;){
String s = scan.next();
if(s.equalsIgnoreCase("Q")){
break;
}
else{
list.add(Integer.valueOf(s));
}
}
System.out.println("ArrayList values are: ");
for(int i=0;i < list.size(); i++){
System.out.println(list.get(i));
}
}
}
Output:
Enter an arbitrary number of integers:
1
2
3](https://image.slidesharecdn.com/writeaprogramloopy2thatusesalooptocollectanarbitrarynu-230701183206-fab98391/85/Write-a-program-Loopy2-that-uses-a-loop-to-collect-an-arbitrary-nu-pdf-1-320.jpg)
