Using Quartet.addAtX() method
Program 1: Adding at Position 0 using addAt0()
Output:
Quartet: [Quartet, Triplet, Pair, Unit]
Quintet: [Quintet, Quartet, Triplet, Pair, Unit]
Program 2: Adding at Position 1 using addAt1()
Output:
Quartet: [Quartet, Triplet, Pair, Unit]
Quintet: [Quartet, Quintet, Triplet, Pair, Unit]
Program 3: Adding at Position 2 using addAt2()
Output:
Quartet: [Quartet, Triplet, Pair, Unit]
Quintet: [Quartet, Triplet, Quintet, Pair, Unit]
Program 4: Adding at Position 3 using addAt3()
Output:
Quartet: [Quartet, Triplet, Pair, Unit]
Quintet: [Quartet, Triplet, Pair, Quintet, Unit]
Program 5: Adding at Position 4 using addAt4()