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Mastering the `for` loop is a fundamental rite of passage for any Java programmer. This cornerstone loop structure empowers you to execute a block of code repeatedly, a capability that forms the backbone of many powerful programming techniques.
From iterating through massive datasets and collections to precisely controlling the flow of your program, the `for` loop plays a critical role in solving a wide range of programming challenges.
This engaging quiz provides the perfect opportunity to test your understanding of how to harness the power of `for` loops in Java, regardless of your experience level. Are you ready to dive in and showcase your `for` loop expertise?
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Question 1 of 15
1. Question
Which of the following is not a type of for loop ?
CorrectIncorrect -
Question 2 of 15
2. Question
class ForLoop {
public static void main ( String args [ ] )
for( int i = 0 ; i < 10 ; i ++ )
{
System.out.println(i);
}
}
What will be the output of the program ?
CorrectIncorrect -
Question 3 of 15
3. Question
class Loop {
public static void main ( String args [ ] )
{
for ( i = 10 ; i < 5 ; i — )
{
int a;
System.out.println(a);
}
}
How many times the null value is printed ?
CorrectIncorrect -
Question 4 of 15
4. Question
Which of the following is the syntax of for loop ?
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Question 5 of 15
5. Question
class ForEach {
public static void main ( String args [ ] )
{
int [ ] a = { 1 , 2 , 3 , 4 , 5 };
for( int i : a )
{
System.out.println(i);
}
}
What will be the output of the program ?
CorrectIncorrect -
Question 6 of 15
6. Question
class Matrices {
public static void main ( String args [ ] )
{
for( int i = 1 ; i < 3 ; i ++ )
{
for ( int j = 1 ; j < 3 ; j ++ )
{
System.out.println ( i + “ “ + j );
}
}
}
What will be the output of the program ?
CorrectIncorrect -
Question 7 of 15
7. Question
Which of the following is true about Labeled for loop in Java ?
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Question 8 of 15
8. Question
class Error {
public static void main ( String args [ ] )
{
for( int i = 0 ; i < 3 ; i — )
{
System.out.println(i);
}
}
What will be the output of the program ?
CorrectIncorrect -
Question 9 of 15
9. Question
class Sample {
public void display(String a )
{
for ( i = 0 ; i < 3 ; i ++ )
{
System.out.println(a);
}
}
class Main {
public static void main ( String args [ ] )
{
Sample obj = new Sample();
obj.display(“DataFlair”);
}
}
CorrectIncorrect -
Question 10 of 15
10. Question
To display all the elements in an array, which of the following for loop is used ?
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Question 11 of 15
11. Question
class Nested {
public static void main ( String args [ ] )
{
for ( int i = 0 ; i < 3 ; i ++ )
{
for ( int i = 1 ; i < 5 ; i ++ )
{
System.out.println(i);
}
}
}
What will be the output of the program ?
CorrectIncorrect -
Question 12 of 15
12. Question
class Label {
public static void main (
one:
for( i = 1 ; i < = 5 ; i ++ )
{
two:
for( j = 0 ; j < 3 ; j ++ )
{
System.out.println(j);
}
break two;
System.out.println(i);
}
}
}
What is the output of the program ?
CorrectIncorrect -
Question 13 of 15
13. Question
Which of the following statements can be used in a for loop ?
CorrectIncorrect -
Question 14 of 15
14. Question
class Main {
public static void main ( String args [ ] )
{
String names [ ] = { “ Sachin “ , “Dhoni “ , “Virat” };
for(names[ ] )
{
System.out.println(names);
}
}
What will be the output of the program ?
CorrectIncorrect -
Question 15 of 15
15. Question
class LoopingStatement {
public void method( int i )
{
for ( i ; i < 3 ; i ++ )
{
System.out.println(“DataFlair”);
}
}
class Main {
public static void main ( String args [ ] )
{
LoopingStatement s = new LoopingStatement();
s.method(2);
}
}
How many times will the String DataFlair be printed ?
CorrectIncorrect
Summary:
Congratulations on conquering the Java `for` loop quiz! Now’s the perfect time to take a deep breath and reflect on your performance. Were there any particular concepts that challenged you? Don’t worry if so! Mastering `for` loops is essential for crafting powerful and efficient Java programs, and encountering a bump in the road is a normal part of the learning process.
This quiz is designed to be a valuable tool – revisit it as often as needed to solidify your understanding. Feeling up for more Java adventures? We’ve got you covered! Dive deeper into the world of `for` loops with our extensive library of resources, including in-depth tutorials, comprehensive online courses, and engaging practice problems.
The more you explore and experiment, the more confident and skilled you’ll become as a Java programmer. So keep at it, keep learning, and keep building amazing Java applications!