Initial data commit

Task/Dot-product/Java/dot-product.java

@@ -0,0 +1,20 @@
+public class DotProduct {
+	
+	public static void main(String[] args) {
+		double[] a = {1, 3, -5};
+		double[] b = {4, -2, -1};
+		
+		System.out.println(dotProd(a,b));
+	}
+	
+	public static double dotProd(double[] a, double[] b){
+		if(a.length != b.length){
+			throw new IllegalArgumentException("The dimensions have to be equal!");
+		}
+		double sum = 0;
+		for(int i = 0; i < a.length; i++){
+			sum += a[i] * b[i];
+		}
+		return sum;
+	}
+}