Question

Using an ArrayList, create a program which does the following: If the user enters quit, the program ends. If the user enters add followed by a string, program adds the string only to your ArrayList. If the user enters print, the program prints out the ArrayList contents. If the user enters size, the program prints out size of ArrayList, If the user enters remove followed by string, it removes all strings.

interface example:

**** Welcome to my List Program ****

Options: quit, add and a string, size, and print

Enter option: add bill jackson

bill jackson added to list

Enter option: print

[bill jackson]

Enter option: size

Size of List is: 1

Enter option: add jim jones

jim jones added to list

Enter option: print

[bill jackson, jim jones]

Enter option: search jim jones

jim jones found in index 1

Enter option: search billy billkins

billy billkins not found

Enter option: remove jim jones

jim jones removed

Enter option: print

[bill jackson]

Enter option: remove nick

nick not found - not removed

Enter option: remove all nick

all nick removed

Enter option: quit

Thank You!

Answer 1

please give thumbs up, thanks

code:

import java.util.ArrayList;
import java.util.Scanner;

/**
*
* @author VISHAL
*/
public class WordProgram {
ArrayList A;
public WordProgram()
{
A=new ArrayList();
}
public void add(String str)
{
A.add(str);
}
public int search(String str)
{
for(int i=0; i<A.size();i++)
{
if(A.get(i)==str)
{
return i;
}
}
return -1;
}
public int size()
{
return A.size();
}
public void print()
{
for(int i=0; i<A.size(); i++)
{
System.out.println(A.get(i));
}
}
public static void main(String[]args)
{
WordProgram P=new WordProgram();
Scanner scan=new Scanner(System.in);
String choice;
while(true)
{
System.out.println("Options: quit, add and a string, size, and print");
choice=scan.nextLine();
String[]data=choice.split(" ");
if("add".equals(data[0]))
{
String word = "";
for(int i=1; i<data.length; i++)
word+=data[i];
P.add(word);
}
else if("size".equals(data[0]))
{
System.out.println("Size of the List is = "+P.size());
}
else if("print".equals(data[0]))
{
P.print();
}
else if("search".equals(data[0]))
{
String word = "";
for(int i=1; i<data.length; i++)
word+=data[i];
if(P.search(word)!=-1)
{
System.out.println(word+" found in index "+P.search(word));
}
else
{
System.out.println("not found");
}
}
else if("quit".equals(data[0]))
{
return;
}
}
}
  
}