Java-Code

public class Mobilfunk {
	
	public static double PriceSum(String PacketTyp, int Minuten) {
		double endPreis = 0;
		
		switch (PacketTyp) {
		case "P_Basis":
		endPreis = 2.95 + (Minuten * 0.10);	
		break;
			
		case "P_100":
			if (Minuten >= 100) {
				endPreis = 3.95 + ((Minuten - 100) * 0.12);					
			} else {
				endPreis = 3.95;
			}
		break;

		case "P_300":
			if (Minuten >= 300) {
				endPreis = 7.95 + ((Minuten - 300) * 0.15);					
			} else {
				endPreis = 7.95;
			}
		break;

		case "P_600":
			if (Minuten >= 600) {
				endPreis = 12.95 + ((Minuten - 600) * 0.20);					
			} else {
				endPreis = 12.95;
			}
		break;
		
		case "P_Flat":
				endPreis = 29.95;
		break;
		
		default:
			break;
		}
		
		return endPreis;
	}
}