Answer:
"A class that inherits from two classes"
Explanation:
If we're talking about Java, you can't extend from two classes. The reason for this is Java doesn't allow multiple inheritance.
The reason for this is to avoid the ambiguity caused by it. One of the cases where multiple inheritance can cause ambiguity is the diamond problem.
Diamond problem can occur if two classes (say B and C) inherit from one class (say A). And another class (say D) inherits from both B & C.
If B and C class override the same method from A class. And D class calls that method, which one will be called, class B's or C's??
Here you go. I added a constructor and a toString overload to make the object creation and printing as easy as possible.
public class student {
private String _id;
private String _name;
private String _address;
public student(String id, String name, String address) {
_id = id;
_name = name;
_address = address;
}
public String toString() {
return "Id: " + _id + "\nName: " + _name + "\nAddress: "+ _address;
}
public static void main(String[] args) {
student s1 = new student("S12345", "John Doe", "Some street");
System.out.println(s1);
}
}
Answer and Explanation:
For returning four columns from the Invoices table, named Number, Total, Credits, and Balance the SELECt statement is as follows
Select Invoice Number As Number
Invoice Total As Total
Payment total + credit total As Credits
Invoice total
(Payment total + credit total) As Balance
These are displayed as above
DROP CAP:-
<u>Drop caps are a specific kind of initial letter, large letters that appear at the beginning of a block of text. ... A drop cap is often used to signify that the reader's moved into a significant new section, or that a new chapter's begun.</u>
<u>Drop caps are a specific kind of initial letter, large letters that appear at the beginning of a block of text. ... A drop cap is often used to signify that the reader's moved into a significant new section, or that a new chapter's begun.A drop cap (dropped capital) is a large capital letter used as a decorative element at the beginning of a paragraph or section. The size of a drop cap is usually two or more lines. The following illustration shows your options for positioning a drop cap.</u>
Answer:
The answer to this question can be given as:
Statement:
isQuadrilateral = (numberOfSides == 4) ? 1 : 0;
//check condition using ternary operator.
Explanation:
we know that both(Quadrilateral, numberOfSides) is already declared in the program. So the statement for check condition is (isQuadrilateral = (numberOfSides == 4) ? 1 : 0;). To check this condition we use the ternary operator. In this operator, we also check another condition. The syntax of ternary operator (condition ? value_if_true : value_if_false).In this statement on the lift side we use the variable for check condition and right side we check condition if the value is true it prints 1 else it will print 0.
