CBSE Class 12 Informatics Practices Worksheet Set 03 Solved

Official Class 12 Informatics Practices Worksheets: All Chapters

Explore reliable practice materials for All Chapters tailored for Class 12 learners. Utilizing these Informatics Practices worksheets ensures thorough preparation and strengthens problem-solving speed for upcoming school assessments.

Chapter-wise Practice Material: All Chapters

Access the complete worksheet PDF for All Chapters below. Regular practice with these targeted questions builds familiarity with standard exam patterns and helps secure higher marks in final Informatics Practices evaluations.

1. Write a JAVA code to generate the following series
1,2,6,24………..n terms (use for loop)
 
2. Find the value of X and i after executing the following code:
int X=0;
int i;
for(i=10;i>=15;i- -)
{
X=i- -;
+ + X;
}
 
3. Write a JAVA code to accept any number from the user and Find the sum of the digits of the accepted number. (use while loop)
 
4. Convert the following from for loop to while loop.
int a=24;
int b=35;
int i;
for(i=a;i<=b;i+=1)
{
jTextArea1.append(“ “+i+”\n”);
}
 
5. How jTextArea is different from jLabel? Explain with an example. 
 
6. Define Exit Level Loop. 
 
7. Write all the limitations of Switch… Case and Explain what is the use of Default in Switch …Case.
 
8. Find the output of the following:
int x=30;
int y=50;
if(y<=n)
jTextField1.setText(“ “+(x-20));
else
jTextField1.setText(“ “+(y+20));
 
9. Define “Fall through” . Explain with an example. 
 
10. Convert the following code from switch case to If statement.
char ch;
switch (ch)
{
case „a‟:
System.out.println(“It is a.”);
case „b‟:
System.out.println(“It is b.”);
break;
case „c‟:
System.out.println(“It is c.”);
break;
case „d‟:
System.out.println(“It is d.”);
break;
default:
System.out.println(“Not a ,b,c ,and d.”);
}
 
11. How getText() is different from setText()? Explain with an example. 
 
12. Write the function name which is used to extract the character from the string based on the index number.


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Download CBSE Practice Material: Class 12 Informatics Practices All Chapters

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Are these Informatics Practices Class 12 worksheets based on the 2026-27 competency-based pattern?

Yes, our CBSE Class 12 Informatics Practices Worksheet Set 03 Solved includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 12.

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Yes, we have provided detailed solutions for CBSE Class 12 Informatics Practices Worksheet Set 03 Solved to help Class 12 and follow the official CBSE marking scheme.

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Daily practice with these Informatics Practices worksheets helps in identifying understanding gaps. It also improves question solving speed and ensures that Class 12 students get more marks in CBSE exams.

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