ICSE Computer Application - Class X - 2017 PYQ
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Table of Content:
- Question 1: What is inheritance?
- Question 2:
Name the operators listed below:
- <
- ++
- &&
- ? :
- Question 3: State the number of bytes occupied by char and int data types.
- Question 4: What is the difference between
/and%operator? - Question 5: Write one difference between / and % operator.
- Question 6:
String x[] = {"SAMSUNG", "NOKIA", "SONY", "MICROMAX", "BLACKBERRY"};
Give the output of the following statements:
- System.out.println(x[1]);
- System.out.println(x[3].length());
- Question 7:
Name the following:
- A keyword used to call a package in the program.
- Any one reference data type.
- Question 8: What are the two ways of invoking functions?
- Question 9: What are the two ways of invoking functions?
- Question 10: State the data type and value of res after the following is executed:
<span class="pln"> </span><span class="kwd">char</span><span class="pln"> ch</span><span class="pun">=</span><span class="str">'t'</span><span class="pun">;</span><span class="pln"> res</span><span class="pun">=</span><span class="pln"> </span><span class="typ">Character</span><span class="pun">.</span><span class="pln">toUpperCase</span><span class="pun">(</span><span class="pln">ch</span><span class="pun">);</span> - Question 11: Give the output of the following program segment and also mention the number of times the loop is executed:
<span class="pln"> </span><span class="kwd">int</span><span class="pln"> a</span><span class="pun">,</span><span class="pln">b</span><span class="pun">;</span><span class="pln"> </span><span class="kwd">for</span><span class="pln"> </span><span class="pun">(</span><span class="pln">a </span><span class="pun">=</span><span class="pln"> </span><span class="lit">6</span><span class="pun">,</span><span class="pln"> b </span><span class="pun">=</span><span class="pln"> </span><span class="lit">4</span><span class="pun">;</span><span class="pln"> a </span><span class="pun"><=</span><span class="pln"> </span><span class="lit">24</span><span class="pun">;</span><span class="pln"> a </span><span class="pun">=</span><span class="pln"> a </span><span class="pun">+</span><span class="pln"> </span><span class="lit">6</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="kwd">if</span><span class="pln"> </span><span class="pun">(</span><span class="pln">a</span><span class="pun">%</span><span class="pln">b </span><span class="pun">==</span><span class="pln"> </span><span class="lit">0</span><span class="pun">)</span><span class="pln"> </span><span class="kwd">break</span><span class="pun">;</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="typ">System</span><span class="pun">.</span><span class="kwd">out</span><span class="pun">.</span><span class="pln">println</span><span class="pun">(</span><span class="pln">a</span><span class="pun">);</span> - Question 12: Write a Java expression for the following:
- Question 13: What is the value of x1 if x=5?
<span class="pln"> x1</span><span class="pun">=</span><span class="pln"> </span><span class="pun">++</span><span class="pln">x </span><span class="pun">–</span><span class="pln"> x</span><span class="pun">++</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> </span><span class="pun">--</span><span class="pln">x</span> - Question 14: Why is an object called an instance of a class?
- Question 15: Why is an object called an instance of a class?
- Question 16: Convert following do-while loop into for loop.
<span class="pln"> </span><span class="kwd">int</span><span class="pln"> i </span><span class="pun">=</span><span class="pln"> </span><span class="lit">1</span><span class="pun">;</span><span class="pln"> </span><span class="kwd">int</span><span class="pln"> d </span><span class="pun">=</span><span class="pln"> </span><span class="lit">5</span><span class="pun">;</span><span class="pln"> </span><span class="kwd">do</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> d</span><span class="pun">=</span><span class="pln">d</span><span class="pun">*</span><span class="lit">2</span><span class="pun">;</span><span class="pln"> </span><span class="typ">System</span><span class="pun">.</span><span class="kwd">out</span><span class="pun">.</span><span class="pln">println</span><span class="pun">(</span><span class="pln">d</span><span class="pun">);</span><span class="pln"> i</span><span class="pun">++</span><span class="pln"> </span><span class="pun">;</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="kwd">while</span><span class="pln"> </span><span class="pun">(</span><span class="pln"> i</span><span class="pun"><=</span><span class="lit">5</span><span class="pun">);</span> - Question 17: Differentiate between constructor and function.
- Question 18: Write the output for the following:
<span class="pln"> </span><span class="typ">String</span><span class="pln"> s</span><span class="pun">=</span><span class="str">"Today is Test"</span><span class="pun">;</span><span class="pln"> </span><span class="typ">System</span><span class="pun">.</span><span class="kwd">out</span><span class="pun">.</span><span class="pln">println</span><span class="pun">(</span><span class="pln">s</span><span class="pun">.</span><span class="pln">indexOf</span><span class="pun">(</span><span class="str">'T'</span><span class="pun">));</span><span class="pln"> </span><span class="typ">System</span><span class="pun">.</span><span class="kwd">out</span><span class="pun">.</span><span class="pln">println</span><span class="pun">(</span><span class="pln">s</span><span class="pun">.</span><span class="pln">substring</span><span class="pun">(</span><span class="lit">0</span><span class="pun">,</span><span class="lit">7</span><span class="pun">)</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> </span><span class="str">" "</span><span class="pln"> </span><span class="pun">+</span><span class="str">"Holiday"</span><span class="pun">);</span> - Question 19:
What are the values stored in variables r1 and r2:
- double r1 = Math.abs(Math.min(-2.83, -5.83));
- double r2 = Math.sqrt(Math.floor(16.3));
- Question 20: Give the output of the following code:
<span class="pln"> </span><span class="typ">String</span><span class="pln"> A </span><span class="pun">=</span><span class="str">"26"</span><span class="pun">,</span><span class="pln"> B</span><span class="pun">=</span><span class="str">"100"</span><span class="pun">;</span><span class="pln"> </span><span class="typ">String</span><span class="pln"> D</span><span class="pun">=</span><span class="pln">A</span><span class="pun">+</span><span class="pln">B</span><span class="pun">+</span><span class="str">"200"</span><span class="pun">;</span><span class="pln"> </span><span class="kwd">int</span><span class="pln"> x</span><span class="pun">=</span><span class="pln"> </span><span class="typ">Integer</span><span class="pun">.</span><span class="pln">parseInt</span><span class="pun">(</span><span class="pln">A</span><span class="pun">);</span><span class="pln"> </span><span class="kwd">int</span><span class="pln"> y </span><span class="pun">=</span><span class="pln"> </span><span class="typ">Integer</span><span class="pun">.</span><span class="pln">parseInt</span><span class="pun">(</span><span class="pln">B</span><span class="pun">);</span><span class="pln"> </span><span class="kwd">int</span><span class="pln"> d </span><span class="pun">=</span><span class="pln"> x</span><span class="pun">+</span><span class="pln">y</span><span class="pun">;</span><span class="pln"> </span><span class="typ">System</span><span class="pun">.</span><span class="kwd">out</span><span class="pun">.</span><span class="pln">println</span><span class="pun">(</span><span class="str">"Result 1 = "</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> D</span><span class="pun">);</span><span class="pln"> </span><span class="typ">System</span><span class="pun">.</span><span class="kwd">out</span><span class="pun">.</span><span class="pln">println</span><span class="pun">(</span><span class="str">"Result 2 = "</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> d</span><span class="pun">);</span> - Question 21:
Analyze the given program segment and answer the following questions:
<span class="pln"> </span><span class="kwd">for</span><span class="pun">(</span><span class="kwd">int</span><span class="pln"> i</span><span class="pun">=</span><span class="lit">3</span><span class="pun">;</span><span class="pln">i</span><span class="pun"><=</span><span class="lit">4</span><span class="pun">;</span><span class="pln">i</span><span class="pun">++</span><span class="pln"> </span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="kwd">for</span><span class="pun">(</span><span class="kwd">int</span><span class="pln"> j</span><span class="pun">=</span><span class="lit">2</span><span class="pun">;</span><span class="pln">j</span><span class="pun"><</span><span class="pln">i</span><span class="pun">;</span><span class="pln">j</span><span class="pun">++</span><span class="pln"> </span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="typ">System</span><span class="pun">.</span><span class="kwd">out</span><span class="pun">.</span><span class="kwd">print</span><span class="pun">(</span><span class="str">""</span><span class="pln"> </span><span class="pun">);</span><span class="pln"> </span><span class="pun">}</span><span class="pln"> </span><span class="typ">System</span><span class="pun">.</span><span class="kwd">out</span><span class="pun">.</span><span class="pln">println</span><span class="pun">(</span><span class="str">"WIN"</span><span class="pln"> </span><span class="pun">);</span><span class="pln"> </span><span class="pun">}</span> - How many times does the inner loop execute?
- Write the output of the program segment.
- Question 22: What is the difference between the Scanner class functions next() and nextLine()?
- Question 23: Write the output:
<span class="pln"> </span><span class="kwd">char</span><span class="pln"> ch </span><span class="pun">=</span><span class="pln"> </span><span class="str">'F'</span><span class="pun">;</span><span class="pln"> </span><span class="kwd">int</span><span class="pln"> m </span><span class="pun">=</span><span class="pln"> ch</span><span class="pun">;</span><span class="pln"> m</span><span class="pun">=</span><span class="pln">m</span><span class="pun">+</span><span class="lit">5</span><span class="pun">;</span><span class="pln"> </span><span class="typ">System</span><span class="pun">.</span><span class="kwd">out</span><span class="pun">.</span><span class="pln">println</span><span class="pun">(</span><span class="pln">m </span><span class="pun">+</span><span class="pln"> </span><span class="str">" "</span><span class="pln"> </span><span class="pun">+</span><span class="pln"> ch</span><span class="pun">);</span>
Related Questions
- Assignment 1: Define a class ElectricBill with the following specifications:
- Assignment 2:
Write a program to accept a number and check and display whether it is a spy number or not. (A number is spy if the sum of its digits equals the product of its digits.)
Example: consider the number 1124.
Sum of the digits = 1 + 1 + 2 + 4 = 8
Product of the digits = 1 x 1 x 2 x 4 = 8 - Assignment 3:
Using switch statement, write a menu driven program for the following:
- To find and display the sum of the series given below:
S = x1 - x2 + x3 - x4 + x5 .......... - x20
(where x = 2) - To display the following series:
1 11 111 1111 11111
For an incorrect option, an appropriate error message should be displayed.
- To find and display the sum of the series given below:
- Assignment 4:
Write a program to input integer elements into an array of size 20 and perform the following operations:
- Display largest number from the array.
- Display smallest number from the array.
- Display sum of all the elements of the array
- Assignment 5: Design a class to overload a function check( ) as follows:
- Assignment 6: Write a program to input forty words in an array. Arrange these words in descending order of alphabets, using selection sort technique. Print the sorted array.