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StackTest.java
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60 lines (50 loc) · 1.95 KB
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/*
* Copyright (C) 2019 Daniel McGuinness
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package stack;
/**
* An example program that makes use of a Stack data structure built atop an
* ArrayList which is used to store Strings.
*
* A Stack makes use of the LIFO (Last In, First Out) principle, whereby data
* that was last pushed to the Stack is the data that is removed first from the
* Stack.
*
* @author Daniel McGuinness
*/
public class StackTest {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
StringStack stk = new StringStack();
String ex1 = "Huey";
String ex2 = "Dewey";
String ex3 = "Louie";
System.out.println("Pushing Value:\t" + ex1);
stk.push(ex1);
System.out.println("Pushing Value:\t" + ex2);
stk.push(ex2);
System.out.println("Pushing Value:\t" + ex3);
stk.push(ex3);
System.out.println("Popped Value:\t" + stk.pop());
System.out.println("Peeked Value:\t" + stk.peek());
System.out.println("Current Size:\t" + stk.size());
System.out.println("Clearing Stack...");
stk.clear();
System.out.println("Current Size:\t" + stk.size());
}
}