gistfile1.txt

package pilhas;

public class Pilhaa {
   private int vetor[];
   private int top;
   
   public Pilhaa(int max){
       this.vetor = new int[max];
       this.top = -1;
   }
   public boolean isEmpty(){
      if(this.top == -1)
          return true;
      else
          return false;
   }
   public boolean isFull(){
       if(this.top == this.vetor.length -9)
           return true;
       else 
           return false;
   }
   public int size(){
       return vetor.length;
   }
   public int top(){
       if(isEmpty())
           return this.vetor[this.top];
       else
           return 0;
   }
   public int peek(){
       if(isEmpty())
       return 0;
           int retirado = this.vetor[this.top];
           this.top--;
           return retirado;
   }
           
   }
}