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Dive into the world of Java assertions and test your knowledge with this interactive quiz! Assertions are a powerful tool for developers, acting like sentries within your code that verify critical assumptions.
By taking this quiz, you’ll embark on a journey to assess your grasp of core assertion concepts. Are you confident in enabling assertions and understanding the conditions that trigger them? Can you distinguish assertion errors from exceptions and identify the valuable information they provide for debugging?
This engaging quiz will challenge your knowledge of these key areas and more, helping you solidify your understanding of how assertions can enhance the robustness and reliability of your Java programs.
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Question 1 of 15
1. Question
Which type of error is raised while not enabling assertions ?
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Question 2 of 15
2. Question
Which of the following is the correct syntax of assertion ?
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Question 3 of 15
3. Question
class Main {
public static void main ( String args [ ] )
{
int weight = 60;
assert weight<=50:”Cannot donate blood”;
System.out.println(“Can donate blood”);
}
}
What is the output of the program ?
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Question 4 of 15
4. Question
Which of the following throws exceptions in assert statements ?
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Question 5 of 15
5. Question
class Counting {
public static void main ( String args [ ] )
{
Scanner sc = new Scanner();
int value = sc.nextInt();
assert value>30:”cannot be included”;
System.out.println(value);
}
}
What should be the input to print “cannot be included” in the given program ?
CorrectIncorrect -
Question 6 of 15
6. Question
class Exception {
public static void main ( String args [ ] )
{
float price = 100.0;
assert price<=100:”Affordable”;
System.out.println(“not affordable”);
}
}
What will be the output of the program ?
CorrectIncorrect -
Question 7 of 15
7. Question
Which of the following statements are used to enable assertions in the program ?
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Question 8 of 15
8. Question
class AssertionExample {
public static void main ( String args [ ] )
{
String data = “DataFlair”;
assert data==”DataFlair”:”String matches”;
System.out.println(“Strings are not matching.”);
}
}
What should be the executional statement for the given program ?
CorrectIncorrect -
Question 9 of 15
9. Question
class Function {
public static void main ( String args [ ] )
{
String a = “Data”;
System.out.println(a.isEquals(“Data”) assert);
System.out.println(“Both are same”);
}
}
What is the output of the program ?
CorrectIncorrect -
Question 10 of 15
10. Question
Which of the following is the main usage of assertions in the program ?
CorrectIncorrect -
Question 11 of 15
11. Question
class One {
public void method( int a )
{
assert a<5:”values are very less”;
System.out.println(a);
}
}
class Two {
public int function ( int b )
{
assert b>5&&<10:”Values are moderate”;
return b;
}
}
class Three {
public void demo ( int c )
{
assert c>10:”Values are high”);
System.out.println(c);
}
}
class Main {
public static void main ( String args [ ] )
{
One o = new One();
Two t = new Two();
Three obj = new Three();
o.method(3);
System.out.println(t.function(7));
obj.demo(12);
}
}
What will be the output of the program ?
CorrectIncorrect -
Question 12 of 15
12. Question
class Main {
public static void main ( String args [ ] )
{
String message=”DataFlair”;
assert message.isEquals(“Webservices”);”DataFlair Webservices”);
System.out.println(message);
}
}
What is the output of the program ?
CorrectIncorrect -
Question 13 of 15
13. Question
Which of the following is true about enabling assertions ?
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Question 14 of 15
14. Question
class Sample {
public static void main ( String args [ ] )
{
float pressure = 90.0;
assert pressure<80:”Low pressure”;
System.out.println(“Pressure is normal”);
}
}
What is the output of the program ?
CorrectIncorrect -
Question 15 of 15
15. Question
class Main {
public static void main ( String args [ ] )
{
int a = 10;
int b = 20;
assert a<15;b>15:a>20:”Not accepted”;
System.out.println(“Values are accepted”);
}
}
What is the error in the program ?
CorrectIncorrect
Summary:
So you’ve put your Java assertion skills to the test! This quiz covered essential topics such as assertion syntax, enabling assertions, and the distinction between assertions and exceptions. By reviewing both your correct and incorrect answers, you can solidify your grasp of assertions and their effective use in Java programming.
Remember, continuous learning is key. Explore additional resources beyond the quiz to deepen your understanding. Consider tutorials, articles, and practice problems to further solidify your knowledge of assertions in Java.