-
Notifications
You must be signed in to change notification settings - Fork 0
/
Cola.java
46 lines (35 loc) · 992 Bytes
/
Cola.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
/**
*
* @author abel
*/
import java.io.Serializable;
public class Cola implements Serializable{
Nodo1 raiz;
int total;
public Cola(){ total=0; }
public boolean vacia(){return (total==0);}
public int total(){return total;}
public void push(Object x){
if (vacia()) raiz=new Nodo1(x,null);
else {
Nodo1 aux=raiz;
while(aux.enlace!=null)aux=aux.enlace;
aux.enlace=new Nodo1(x,null);
}
total++;
}
public Object tope() throws Exception{
if (!vacia()) return raiz.valor;
else throw new Exception("Cola Vacia");
}
public void pop() throws Exception{
if (!vacia()) raiz=raiz.enlace;
else throw new Exception("Cola Vacia");
total--;
}
}