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/******************************************************************************
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Code, Compile, Run and Debug java program online.
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public class queues<E> {
private Stack<E> primary=new Stack<>();
private Stack<E> secondary=new Stack<>();
public void enque(E data)
{
while(primary.size()!=0)
{
secondary.push(primary.pop());
}
primary.push(data);
while(secondary.size()!=0)
{
primary.push(secondary.pop());
}
}
public void deque()
{
System.out.println(primary.pop());
}
public void print()
{
System.out.println(primary);
}
public static void main(String[] args) {
queues<Integer> a=new queues<>();
a.enque(1);
a.enque(2);
a.enque(3);
a.enque(4);
a.print();
}
}
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