Answer:
Complete the program as follows:
1. Replace
String combo =
with
String combo = customerOrder.substring(0);
2. Replace
Integer comboNumber =
with
Integer comboNumber = Integer.parseInt(combo);
Explanation:
Required
Fill in the missing codes
From the code given, there are only two gaps to be filled and they are:
1. String combo =
2. Integer comboNumber =
1. String combo =
The first is to get the first index of customerOrder using substring.
The syntax of this is:
variable.substring(0);
In this case, the syntax will be replaced with:
<em>String combo = customerOrder.substring(0);</em>
Where customerOrder represents the string variables
2. Integer comboNumber =
This is to convert combo from string to integer using parseInt
This is done as follows:
Integer comboNumber = Integer.parseInt(combo);
<em>See attachment for complete code</em>
Answer:
public class Invitation
{
private String hostname;
private String address;
public Invitation(String n, String a)
{ // constructor that accepts two strings.
hostname = n;
address = a;
}
public String getHostname()
{
return hostname;
}
public void setAddress(String a)
{
address = a;
}
public String invite(String guest)
{
return "Hello" +guest+ ", you are invited to my party at " +address+". "+hostname+".";
}
public Invitation(String host, String address)
{
this.address = address;
this.hostname = host;
}
}
Explanation:
The Java program defines a class called "Invitation". The class constructor has two string arguments or parameters for the host of the event and the address. The invite method is used to generate the string invite message with the name of the guest as the argument. Use the "setAddress" method to set a new location of the event and the "getHostname" to get the name of the event host.
Answer:
Following are the statement is given below
if(updateDirection ==1) // check condition
{
++numUsers; // increments the value
}
else
{
--numUsers; // decrement the value
}
Explanation:
Following are the description of statement
- Check the condition in the if block .If the "updateDirection" variable is 1 then then control moves to the if block otherwise control moves to the else block statement.
- In the if block the statement is "++numUsers" it means it increment the value by 1 .
- In the else block the statement is "--numUsers" it means it decrement the value by 1 .
Answer:
All of Given
Explanation:
The throw keywords can be used to throw any Throwable object. The syntax is :
throw <Throwable instance>
Note that Error and Exception are subclasses of Throwable while RuntimeException is a subclass of Exception. So the hierarchy is as follows:
Throwable
-- Error
-- Exception
-- RuntimeException
And all of these are valid throwable entities. As a result "All of Given" is the most appropriate option for this question.
