Answer:
c. prompt(text[,default Input])
Explanation:
In javaScript the prompt() method displays a dialog box which allows the user input text required by the program.
Answer:
Derive FROM invoice_transaction, invoice_details, item_details
and JOIN customer_details ON (invoice_transaction.CUST_ID = customer_details.CUST_ID AND customer_details.FIRST_NAME = 'James' AND customer_details.LAST_NAME = 'Gonzalez')
Explanation:
The following details will be there in the invoice
-
item_details
- rep_details
- invoice_details
- customer_details
- invoice_transaction
Derive FROM invoice_transaction, invoice_details, item_details
and JOIN customer_details ON (invoice_transaction.CUST_ID = customer_details.CUST_ID AND customer_details.FIRST_NAME = 'James' AND customer_details.LAST_NAME = 'Gonzalez')
Answer:
PrintWriter variable = new PrintWriter("output.txt");
Explanation:
There are two ways of declaring a reference variable in programming.
One way is
Reference Variable-name = new Reference ("some texts here");
While the other is
Reference Variable-name;
Variable-name = new Reference ("some texts here");
Both ways are valid ways of reference variable declaration.
In the question above, the reference is PrintWriter, it points to output.txt and the question says "write a single statement";
Hence, we make use of
PrintWriter variable = new PrintWriter("output.txt");
A reference variable is declared to be of a specific type and that type can never be changed.
Answer:
It can only be used in superclasses
Explanation:
In computer language, a reserved word is a word that cannot be used as an identifier, such as the name of a variable, function, or label, it is "reserved from use".
If your method overrides one of its superclass's methods, you can invoke the overridden method through the use of the keyword super, it can also be used to refer to a hidden field.
We can conclude that the correct answer is "It can only be used in superclasses" because, in a subclass’ constructor, we can call the superclass’ constructor with the keyword super instead of the superclass’ (constructor’s) name.
I hope you find this information useful and interesting! Good luck!
Answer:
that's true after some period of time it's necessary
