import java.util.ArrayList;
public class ArrayListDemo {
public static void main(String[] args) {
// create an empty array list with an initial capacity
ArrayList<Integer> arrlist = new ArrayList<Integer<(8);
// use add() method to add elements in the list
arrlist.add(20);
arrlist.add(25);
arrlist.add(10);
arrlist.add(15);
// let us print all the elements available in list
for (Integer number : arrlist) {
System.out.println("Number = " + number);
}
// list contains element 10
boolean retval = arrlist.contains(10);
if (retval == true) {
System.out.println("element 10 is contained in the list");
}
else {
System.out.println("element 10 is not contained in the list");
}
// list does not contain element 30
boolean retval2 = arrlist.contains(30);
if (retval2 == true) {
System.out.println("element 30 is contained in the list");
}
else {
System.out.println("element 30 is not contained in the list");
}
}
}
Let us compile and run the above program, this will produce the following result:
Number = 20
Number = 25
Number = 10
Number = 15
element 10 is contained in the list
element 30 is not contained in the list
