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CSE Computer Application - Class X - 2017 PYQ

Rumman Ansari   Software Engineer   2024-08-19 01:48:49   26  Share
Subject Syllabus DetailsSubject Details 19 Questions 6 Program

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Related Assignment

• 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:

  1. To find and display the sum of the series given below:
     S = x¹ - x² + x³ - x⁴ + x⁵ .......... - x²⁰
     (where x = 2)
  2. To display the following series:
     1 11 111 1111 11111

  For an incorrect option, an appropriate error message should be displayed.

• Assignment 4:

  Write a program to input integer elements into an array of size 20 and perform the following operations:

  1. Display largest number from the array.
  2. Display smallest number from the array.
  3. 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.

Related Questions

• Question 1: (i) Why is an object called an instance of a class?
• Question 2: What are the two ways of invoking functions?
• Question 3: What is the difference between / and % operator?
• Question 4: What is inheritance?
• Question 5:

  Name the operators listed below:

  1. <
  2. ++
  3. &&
  4. ? :
• Question 6: State the number of bytes occupied by char and int data types.
• Question 7: Write one difference between / and % operator.
• Question 8:

  String x[] = {"SAMSUNG", "NOKIA", "SONY", "MICROMAX", "BLACKBERRY"};

  Give the output of the following statements:

  1. System.out.println(x[1]);
  2. System.out.println(x[3].length());
• Question 9:

  Name the following:

  1. A keyword used to call a package in the program.
  2. Any one reference data type.
• Question 10: What are the two ways of invoking functions?
• Question 11: State the data type and value of res after the following is executed:

  
  char ch='t';
  res= Character.toUpperCase(ch);
  

• Question 12: Give the output of the following program segment and also mention the number of times the loop is executed:

  
  int a,b;
  for (a = 6, b = 4; a <= 24; a = a + 6)
  {
      if (a%b == 0)
      break;
  }
  System.out.println(a);
  

• Question 13: Write the output:

  
  char ch = 'F';
  int m = ch;
  m=m+5;
  System.out.println(m + " " + ch);
  

• Question 14: Write a Java expression for the following: \[ \begin{align} ax^5 + bx^3 + c \end{align} \]
• Question 15: What is the value of x1 if x=5?

  
  x1= ++x – x++ + --x
  

• Question 16: Why is an object called an instance of a class?
• Question 17: Convert following do-while loop into for loop.

  
  int i = 1;
  int d = 5;
  do {
      d=d*2;
      System.out.println(d);
      i++ ; } while ( i<=5);
  

• Question 18: Differentiate between constructor and function.
• Question 19: Write the output for the following:

  
  String s="Today is Test";
  System.out.println(s.indexOf('T'));
  System.out.println(s.substring(0,7) + " " +"Holiday");
  

• Question 20:

  What are the values stored in variables r1 and r2:

  1. double r1 = Math.abs(Math.min(-2.83, -5.83));
  2. double r2 = Math.sqrt(Math.floor(16.3));
• Question 21: Give the output of the following code:

  
  String A ="26", B="100";
  String D=A+B+"200";
  int x= Integer.parseInt(A);
  int y = Integer.parseInt(B);
  int d = x+y;
  System.out.println("Result 1 = " + D);
  System.out.println("Result 2 = " + d);
  

• Question 22:

  Analyze the given program segment and answer the following questions:

  
  for(int i=3;i<=4;i++ ) {
  for(int j=2;j<i;j++ ) {
  System.out.print("" ); }
  System.out.println("WIN" ); }
  

  1. How many times does the inner loop execute?
  2. Write the output of the program segment.
• Question 23: What is the difference between the Scanner class functions next() and nextLine()?

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