import java.io.*;
import java.util.*;
class StackArray
{
Stack s=new Stack();
public void push(int i) throws Exception
{
s.push(new Integer(i));
}
public void pop() throws Exception
{
if(s.empty())
System.out.println("array Underflow");
else
s.pop();
}
public void display() throws Exception
{
for(Iterator i=s.iterator();i.hasNext();)
System.out.println(i.next());
}
}
class MainStack
{
public static void main(String args[])
{ try
{
StackArra
y s=new StackArray();
int c;
s.push(1);
s.push(2);
s.push(3);
s.display();
s.pop();
s.display();
}
catch(Exception e)
{
System.out.println(e);
}
}
}
import java.util.*;
class StackArray
{
Stack s=new Stack();
public void push(int i) throws Exception
{
s.push(new Integer(i));
}
public void pop() throws Exception
{
if(s.empty())
System.out.println("array Underflow");
else
s.pop();
}
public void display() throws Exception
{
for(Iterator i=s.iterator();i.hasNext();)
System.out.println(i.next());
}
}
class MainStack
{
public static void main(String args[])
{ try
{
StackArra
y s=new StackArray();
int c;
s.push(1);
s.push(2);
s.push(3);
s.display();
s.pop();
s.display();
}
catch(Exception e)
{
System.out.println(e);
}
}
}
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