What is the main advantage of using OOP in software development?
Anonymous Quiz
16%
It allows for procedural programming
33%
It reduces code reusability
42%
It makes the code easier to maintain and understand
9%
It eliminates the need for modular programming
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Which SOLID principle suggests that a class should be open for extension but closed for modification?
Anonymous Quiz
25%
Encapsulation
17%
Polymorphism
25%
Abstraction
33%
Open/Closed Principle
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What is the output of the code above?
Anonymous Quiz
19%
The code does not compile due to Line 4.
31%
The code throws a runtime exception error.
15%
The day you prefer: Monday
35%
The day you prefer: Tuesday
👍4😁1
Which one of the following can be inherited in Java?
Anonymous Quiz
22%
Enum
16%
Final classes
34%
Constructors
28%
None of the above
👍7😈2
If a thread is defined in a public class in Java, "public class Java implements Runnable", how can we call this thread within another class?
Anonymous Quiz
29%
Thread thread = new Thread(new Java());
12%
Thread thread = new Java();
21%
Thread thread = new Thread(Java);
28%
All of the above
10%
None of the above
👍2❤1
Java Code:
public class MainExample {
public static void main(String args[]) {
String str = "6";
long l = Long.parseLong(str);
l = 4; // Line x
System.out.println(l);
}
}What is the output of the code snippet above?
Anonymous Quiz
22%
6
50%
4
28%
The code does not compile because of Line x.
👏2👍1
Java Code:
public class MainExample {
public static void main(String args []) {
long value = 2000;
do {
System.out.print("The result: " + value);
}
while (value < 2000);
}
}👍5❤1
What is the output of the code above?
Anonymous Quiz
56%
The result: 2000
28%
The code doesn't print anything to the screen.
17%
The code throws a runtime exception.
👍6❤1
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👏2
What is the output of the code snippet above?
Anonymous Quiz
37%
0123
29%
0 1 2 3
20%
The code does not compile.
14%
The code will throw a runtime exception.
❤5👍3
Java Code:
public class JavaExercise {
public static void main(String args[]) {
StringBuilder sb = new StringBuilder("Java");
String str = sb.append("Channel"); // Line X
System.out.print(str);
}
}👍3😁1
What will the output of this code?
Anonymous Quiz
54%
JavaChannel
18%
Java
15%
Channel
14%
The code will not work due to the error in Line X.
👍6😁1
Which of the following structures in Java sorts the compounds randomly?
Anonymous Quiz
44%
HashSet
22%
Array
23%
ArrayList
11%
List