Page 258 - computer science (868) class 11
P. 258
Examples:
Country name: INDIA
Output: INDIA - TAJ MAHAL
Country name: USA
Output: Sorry not found!
21. Write a program in Java to input two words and print the common alphabets in them.
Sample Input:
Enter 1st word : INDIA
Enter 2nd word : DELHI
Sample Output:
Common ALPHABETS : I,D
22. Write a program in Java to accept a sentence, then convert each character to a second next character. The character A becomes
C and Z becomes B and so on.
23. A class TheString accepts a string of a maximum of 100 characters with only one blank space between the words.
Some of the members of the class are as follows:
Class name : TheString
Data Members/Instance variables
str : to store a string
len : integer to store the length of the string
wordcount : integer to store the number of words
cons : integer to store the number of consonants
Member Functions/methods
TheString() : default constructor to initialize the data members
TheString(String ds) : parameterized constructor to assign str=ds
void countFreq() : to count the number of words and the number of consonants and store them in wordcount and cons
respectively
void Display() : to display the original string, along with the number of words and the number of consonants
Specify the class TheString giving the details of the constructors, void countFreq() and void Display(). Define the main() function
to create an object and call the methods accordingly to perform the task.
24. Design a class sortword with the following specifications:
Data Members
String txt : to store the word
int len : length of the word
Member Methods
sortword() : default constructor
void readtxt() : accepts the word
void sorttxt() : sorts the word in alphabetic order of characters using the bubble sort technique
void display() : displays the changed string
25. Write a program in Java to accept a string, which includes some special characters like punctuation marks such as full stop,
comma, semicolon, etc. Display the string in reversed order without using punctuation marks.
Sample Input: ‘Directed to work’, ‘controlled’, and ‘Emotions’
Sample Output: Emotions and controlled work to directed
26. Write a program in Java to enter certain alphabets in a 2D array mxn. Display the elements of the matrix. Replace all the vowels
of the matrix with the ‘*’. Display the new matrix.
Sample input:
w E d
r T u
k J u
256256 Touchpad Computer Science-XI

