STACK in JAVA

/** * Interface for a stack of primitive doubles. * CPS 350 * * NOTE: You will * need to write something better for your implementations. */ public interface DStack { /** * is empty? */ public boolean isEmpty();

/** * push */ public void push(double d);

/** * pop * @return the deleted value * @throws EmptyStackException if stack is empty */ public double pop();

/** * peek * @throws EmptyStackException if stack is empty */ public double peek(); }