See how long I can hold the key down. I forgot there was a max :/
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Answer:
The challenge of cost control
The challenge of competence
The challenge of reduced system delivery times.
Explanation:The Challenge of Cost control is a major challenge affecting the software engineering in the 21st century,the cost of Microchips and other hardware are constantly rising.
The challenge of competence is another major challenge affecting software engineering in the 21st century,as most software engineers lack the required competence to handle some of the issues facing softwares.
The challenge of reduced system delivery times is a major challenge likely to affect software engineering in the 21st century,as people required the software to be available in the shortest possible time.
Answer:
public class PostAccount
{
public void withdraw(float savings)
{
if (savings >=0 )
{
IllegalArgumentException exception
= new IllegalArgumentException("Savings cannot be negative");
throw exception;
}
balance = savings - withdraw;
}
}
Explanation:
IllgalArgumentException is a type of NumberFormatException of runtime exception. Here in the program we have created an object of IllgalArgumentException class and after that we have thrown the error to show the condition if it does not satisfy the if condition.
<span>Here's program. Add your own rate below, I've added commentary where. Try it:
double amount;
string currency;
Dictionary<string, double> factors = new Dictionary<string, double>();
factors.Add("GBP", 1.1111D);
factors.Add("USD", 1.11111D); // here you can add the rate you need
Console.WriteLine("Please enter the amount of Euro you wish to be converted:");
amount = double.Parse(Console.ReadLine());
Console.WriteLine("");
Console.WriteLine("Please choose the currency you wish to convert to:");
Console.WriteLine("USD");
Console.WriteLine("GBP");
Console.WriteLine("");
currency = Console.ReadLine();
double factor;
if (factors.TryGetValue(currency, out factor))
{
Console.WriteLine("You have entered {0} EUR which converts to {1} {2}", amount, amount * factor, currency);
}
else
{
Console.WriteLine("You did not enter a recognised currency {1}", currency);
<span>}</span></span>
