Pre release 2016

TaskOneTwoThree.java

import java.text.DecimalFormat;
import java.util.Scanner;


public class Tasks {

	public static void main(String[] args) {
		task2();
	}
	
	public static void task1() {

		// init variables
		double[] dimensions = new double[3];
		double weight = 0d;
		
		// create error string with dummy variable
		String message = "";
		
		Scanner in = new Scanner(System.in);
				
		for (int i = 0; i < dimensions.length; i++) {
			
			while (true) {
				try {
					
					System.out.println("Enter a valid dimension for dimension " + (i + 1) + ": ");
					dimensions[i]= in.nextDouble(); 
					
					if (dimensions[i] >= 80 ) {
						message += "\nDimension " + (i + 1) + " is too large";
					} 
					
					break;
				} catch (Exception e) {
					// input value is not valid
					in.next();
				}
			}
			
		}
		if (dimensions[0] + dimensions[1] + dimensions[2] > 200) {
			message += "\nDimension total is too large";
		}
	
		while (true) {
			try {
				System.out.println("Enter a valid weight: ");
				weight = in.nextDouble();
				break;
			} catch (Exception e) {
				in.next();
			}
		}
		
		if (weight < 1 || weight > 10) {
			message += "\nWeight is not acceptable";
		}
		
		if (!message.equals("")) {
			System.out.println("\nParcel rejected: " + message);
		} else {
			System.out.println("Parcel accepted :D");
		}
	}
	
	public static void task2() {
		
		DecimalFormat decimalFormat = new DecimalFormat("00.00");
		
		Scanner in = new Scanner(System.in);
		
		int numberInConsignment = -1;
		while (numberInConsignment == -1) {
			try {
				System.out.println("How many parcels do you have? ");
				numberInConsignment = in.nextInt();
			} catch (Exception e) {
				System.out.println("Please enter a valid integer");
				in.next();
			}
		}
		
		
		String rejectedmessage = "";
		String acceptedmessage = "";

		int accepted = 0;
		double totalWeight = 0;
		double totalCost = 0;
		
		for (int j = 0; j < numberInConsignment; j++) {
			
			System.out.println("Parcel " + (j+1) + ":");

			// init variables
			double[] dimensions = new double[3];
			double weight = 0d;
			
			double cost = 0;
			
			String tempMessage = "";
			
			for (int i = 0; i < dimensions.length; i++) {
				
				while (true) {
					try {
						
						System.out.println("Enter a valid dimension for dimension " + (i + 1) + ": ");
						dimensions[i]= in.nextDouble(); 
						
						if (dimensions[i] >= 80 ) {
							tempMessage += "\n - Dimension " + (i + 1) + " is too large";
						} 
						
						break;
					} catch (Exception e) {
						// input value is not valid
						in.next();
					}
				}
				
			}
			if (dimensions[0] + dimensions[1] + dimensions[2] > 200) {
				tempMessage += "\n - Dimension total is too large";
			}
		
			while (true) {
				try {
					System.out.println("Enter a valid weight: ");
					weight = in.nextDouble();
					break;
				} catch (Exception e) {
					in.next();
				}
			}
			
			if (weight < 1 || weight > 10) {
				tempMessage += "\n - Weight is not acceptable";
			} else if (weight <= 5) {
				cost += 10d;
			} else {
				cost += 10d;
				double weightInGrams = weight * 100;
				while (weightInGrams > 0) {
					weightInGrams -= 100;
					cost += 0.1d;
				}
			}
			
			if (!tempMessage.equals("")) {
				rejectedmessage += "\nParcel " + (j+1) + " rejected: " + tempMessage;
			} else {
				acceptedmessage += "\nParcel " + (j+1) + " cost $"  + decimalFormat.format(cost);
				accepted ++;
				totalCost += cost;
				totalWeight += weight;
			}
		}
		
		System.out.println(accepted + "/" + numberInConsignment + " parcels were accepted totalling a weight of " + decimalFormat.format(totalWeight) + "kg \n\nHere's the bill:" + acceptedmessage);
		if (accepted != numberInConsignment && !rejectedmessage.equals("")) {
			System.out.println("\nThese parcels were rejected: " + rejectedmessage);
		} 
		
	}	

}