Answer:
A BorderLayout corresponds to a layout type where the components are organized along geographical directions represented by NORTH, SOUTH, EAST, WEST, and CENTER.
Explanation:
The layout class is awt determines the actual placement of components in the user interface. BorderLayout is a layout where the components are organized along geographical directions represented by NORTH, SOUTH, EAST, WEST, and CENTER. For example:
Panel p = new Panel();
p.setLayout(new BorderLayout());
p.add(new TextArea(), BorderLayout.CENTER);
p.add(new Button("Close"), BorderLayout.SOUTH);
This code segment will add a textarea at the CENTER of the interface and a button 'Close' towards the SOUTH.
Answer:
2. <em>A reference of type A can be treated as a reference of type B</em> - False
Base class or its objects are not related to their derived class (or its objects).
Explanation:
class A {
int a;
public A() {
a = 7;
}
}
class B extends A {
int b;
public B() {
b = 8;
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////
1. <em>After the constructor for class B executes, the variable a will have the value 7 </em>- True.
When an object of a derived class is declared, the constructor of base class is called before the constructor of derived class (is called).
3. <em>Both variables a and b are instance variables </em>- True.
Classes can have instance, or member, variables and methods.
4.<em> After the constructor for class B executes, the variable b will have the value 8</em> - True.
When object of class B is declared, its constructor was called, which initialized variable b to 8.
Most <u>Malware</u> focus on gaining entry over the internet to a secure computer system by finding a working user ID and password combination.
<u>Explanation:</u>
A malware is a small computer program which works on the user’s system without knowing to the user. Different malware works differently.
Some malware sits on the user computer, create multiple unnecessary files and make the hard drive full, some people create viruses to show their computer skills which they tend to prove in a wrong way, some malware sits in the computer to steal data especially while using internet.
So there are malware's like Virus, Worm, Trojan, spyware, etc.
Answer:
Explanation:
HTML attributes are a modifier of an HTML element type. An attribute either modifies the default functionality of an element type or provides functionality to certain element types unable to function correctly without them. In HTML syntax, an attribute is added to an HTML start tag.
