CSC300: Abstract Data Types and Data Structures: ADTs in Java

In Java we write this as follows (using Strings instead of plates):

package algs13;
public class StackOfStrings {
  public StackOfStrings          { /* ... */ }
  public boolean isEmpty ()      { /* ... */ }
  public void push (String item) { /* ... */ }
  public String pop ()           { /* ... */ }
}

We use the ADT as follows:

  StackOfStrings stack = new StackOfStrings();
  stack.push("a"); 
  if (! stack.isEmpty()) { String item = stack.pop(); }