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StackLE.java
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61 lines (48 loc) · 1.21 KB
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import java.util.NoSuchElementException;
public class StackLE<E> {
private ListaEnlazada<E> lista;
public StackLE() {
this.lista=new ListaEnlazada<E>();
}
public int size() {
return this.lista.size();
}
public boolean isEmpty() {
return this.lista.estaVacia();
}
public void push(E dato) {
this.lista.insertarInicio(dato);
}
public E pop() {
try {
return this.lista.borrarInicio();
}catch(NoSuchElementException ex) {
throw new NoSuchElementException("No se puede hacer un dequeue de un Stack vacio");
}
}
public void flush() {
this.lista=new ListaEnlazada<>();
System.gc();
}
public E next() throws NoSuchElementException {
try {
return this.lista.inicio();
}catch(NoSuchElementException ex) {
throw new NoSuchElementException("No se puede hacer un next de un Stack vacio");
}
}
public String toString() {
return this.lista.toString();
}
public static void main(String[] args) {
StackLE <String> fila1= new StackLE <>();
String[] nombres= {"Kevin","Eutimio","Hector", "Quirino", "Lafarga","Donovan","Elias"};
for(String nombre:nombres) {
fila1.push(nombre);
}
fila1.pop();
while(!fila1.isEmpty()) {
System.out.println(fila1.pop());
}
}
}