Question

I need to write a method in java that returns void and takes a String element.

ex :public void addelemt(String element)

the method job is to add elements to an ArrayList as many times as the person wants.

please, no use of a switch or do.

Answer 1

import java.util.*;

class ArrayListDemo
{
ArrayList<String> a1;

ArrayListDemo()
{
a1=new ArrayList<String>();
}

public void addelemt(String element)
{
a1.add(element);
}

public void showElements()
{
System.out.println("\n\nElements Array : \n");
System.out.println(a1);
}
}

class TestClass
{
public static void main(String args[])
{
String element,yesNo;
Scanner sc=new Scanner(System.in);
ArrayListDemo ald=new ArrayListDemo();
System.out.println("\n");
while(true)
{
System.out.print("\nEnter Element : ");
element=sc.next();
ald.addelemt(element);
System.out.print("\nDo you want to add next element?(yes/no) : ");
yesNo=sc.next();
if(yesNo.equalsIgnoreCase("no"))
{
break;
}
}

ald.showElements();
System.out.println("\n");
}
}

PS C: \Usersluser\Desktop\Chegg Java ArrayList> javac TestClass.java PS C:\Usersluser\Desktop\Chegg Java\ArrayList> java TestClass Enter Element: Apple Do you want to add next element? (yes/no) yes Enter Element Orange Do you want to add next element? (yes/no) yes Enter Element Pineapple Do you want to add next element? (yes/no) yes Enter Element : Orange Do you want to add next element? (yes/no) no Elements Array [Apple, Orange, Pineapple, Orange] Activate Windows Go to Settings to activate Windows PS C:\Usersluser \Desktop\Chegg lJava ArrayList> 1221 PM Type here to search

Note: Used showElements() method to display all the stored elements.