Computer Science : Class Libraries
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Example Questions
Example Question #5 : Object Oriented Program Design
Which of the following header statements allow you to omit using the std:: when using cout?
using namespace std;
You don't need a header statement.
#include <standard>
#include <iostream>
#include <cmath>
using namespace std;
You must put using namespace std; at the top of your file to avoid having to type std:: every time you use cout and cin.
Example Question #1 : Class Libraries
Which of the access modifiers don't work in Java?
static
final
delete
abstract
delete
One of the benefits to Java is that there is garbage collection. So when data is disposed of its done automatically versus a language like C++ where you need to tell the program to delete dynamically allocated data.
Example Question #1 : Class Libraries
What line of code is needed to import in order to use Color in the following format Color.Blue, Color.RED, Color.White?
import java.awt.Color;
import java.awt.*;
import java.io.Color;
import java.util.Color;
import java.awt.*;
If you were to use the following format Color.Red, Color.Blue, etc then the correct answer would have to be java.awt.*; While java.awt.Color; does fit the appropriate code, if you import that entire statement, you don't need to put Color.Red just Red and following. The other two import statements are just completely wrong.
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