ADT stack
I want a algorithm for the below programs....1)Implement Lisp-like list in Java. Write basic operations such as 'car', 'cdr', and 'cons'. If L is a list [3, 0, 2, 5], L.car() returns 3, while L.cdr() returns [0,2,5].
2)Design a Java interface for ADT Stack. Develop two different classes that implement this interface, one using array and the other using linked-list. Provide necessary exception handling in both the implementations.
View Answers
August 12, 2010 at 10:36 AM
Hi Friend,
Try the following code:
import java.util.*;
class Lisp
{
public int car(List l){
Object ob=l.get(0);
String st=ob.toString();
return Integer.parseInt(st);
}
public List cdr(List l){
Object ob=l.remove(0);
Object obj[]=l.toArray();
List list=Arrays.asList(obj);
return list;
}
public static void main(String[] args)
{
List<Integer> l=new ArrayList<Integer>();
l.add(3);
l.add(0);
l.add(2);
l.add(5);
Lisp L=new Lisp();
int val=L.car(l);
System.out.println(val);
List list=L.cdr(l);
System.out.print(list);
}
}
Thanks
Try the following code:
import java.util.*;
class Lisp
{
public int car(List l){
Object ob=l.get(0);
String st=ob.toString();
return Integer.parseInt(st);
}
public List cdr(List l){
Object ob=l.remove(0);
Object obj[]=l.toArray();
List list=Arrays.asList(obj);
return list;
}
public static void main(String[] args)
{
List<Integer> l=new ArrayList<Integer>();
l.add(3);
l.add(0);
l.add(2);
l.add(5);
Lisp L=new Lisp();
int val=L.car(l);
System.out.println(val);
List list=L.cdr(l);
System.out.print(list);
}
}
Thanks
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