//C# Parameter Arrays - ParamArray Procedures en Functies
public class Example1 {
    void Main() {
        Console.WriteLine(this.GetSum(1, 2, 3, 4, 5));
        Console.WriteLine(this.GetSum(1, 2, 3, 4));
        Console.WriteLine(this.GetSum(1, 2, 3));
        Console.WriteLine(this.GetSum(1, 2));
        Console.WriteLine(this.GetSum(1));
        Console.WriteLine(this.GetSum());
        Console.ReadLine();
    }
    void GetSum(int[] values) {
        if ((values != null)) {
            for (System.Collections.IEnumerator _it1 = values.GetEnumerator(); _it1.MoveNext(); ) {
                int value = ((int)(_it1.Current));

                this.GetSum += new System.EventHandler(value);
            }
        }
    }
}
public class Example2 {
    void Main() {
        int[] values;
        Console.WriteLine(Example1.GetSum(values));
        values = null;
        Console.WriteLine(Example1.GetSum(values));
        Console.ReadLine();
    }
}
public class Exercise1Task {
    void Main() {
        Console.WriteLine(Exercise1Solution.GetConcatenation("abc", "def", "ghi"));
        Console.WriteLine(Exercise1Solution.GetConcatenation("abc", "def"));
        Console.WriteLine(Exercise1Solution.GetConcatenation("abc"));
        Console.WriteLine(Exercise1Solution.GetConcatenation());
        string[] words;
        Console.WriteLine(Exercise1Solution.GetConcatenation(words));
        words = null;
        Console.WriteLine(Exercise1Solution.GetConcatenation(words));
        Console.ReadLine();
    }
}
public class Exercise1Solution {
    void GetConcatenation(string[] words) {
        if ((words != null)) {
            for (System.Collections.IEnumerator _it1 = words.GetEnumerator(); _it1.MoveNext(); ) {
                string word = ((string)(_it1.Current));

                GetConcatenation = word;
            }
        }
    }
}
public class Exercise2Task {
    void Main() {
        int[] values;
        Example1.PrintArray(values);
        int count = 5;
        int[] valuesCopy;
        valuesCopy = Exercise2Solution.GetIntegerArrayCopy(values, count);
        Example1.PrintArray(valuesCopy);
        int factor = 4;
        count = 3;
        Exercise2Solution.MultiplyIntegerValues(valuesCopy, count, factor);
        Example1.PrintArray(values);
        Example1.PrintArray(valuesCopy);
        count = 6;
        Exercise2Solution.MultiplyIntegerValues(values, count);
        Example1.PrintArray(values);
        Example1.PrintArray(valuesCopy);
        Console.ReadLine();
    }
}
public class Exercise2Solution {
    void GetIntegerArrayCopy(int[] values, int count) {
        int[] valuesCopy = new int[0];
        this.valuesCopy(index) = this.values(index);
        GetIntegerArrayCopy = valuesCopy;
    }
    void MultiplyIntegerValues(int[] values, int count, int factor) {
        this.values(index) = factor;
    }
}
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