POSE3_06_Generics/src/HUE_06_Generics.java

/************************************************
 * Name: David Wurm
 * Datum: 25.11.2019
 * Klasse: 3AHIF
 * Programm: HUE_06_GenericsQueue
 ************************************************/
import java.util.Queue;
public class HUE_06_Generics {
    public static void main(String[] args) {
        Queue<String> strs = new ChainQueue<String>();
        // implement null-tests
        System.out.println(strs.poll()); // should be null
        System.out.println(strs.size()); // should be 0

        strs.add("hallo1");
        strs.add("hallo2");
        strs.add("hallo3");
        System.out.println("Contains: " + strs.contains("hallo1"));
        System.out.println("Contains: " + strs.contains("hallo4"));
        System.out.println(" - " + strs.poll() + " #" + strs.size());
        System.out.println("Contains: " + strs.contains("hallo1"));
        System.out.println("Contains: " + strs.contains("hallo4"));
        System.out.println(" - " + strs.poll() + " #" + strs.size());
        System.out.println(" - " + strs.poll() + " #" + strs.size());
        System.out.println(" - " + strs.poll() + " #" + strs.size());

        Queue<Integer> strs2 = new ChainQueue<>();
        strs2.add(1);
        strs2.add(2);
        strs2.add(3);
    }
}