Computer Applications
Define a class to accept a String and print the number of digits, alphabets and special characters in the string.
Example:
S = "KAPILDEV@83"
Output:
Number of digits – 2
Number of Alphabets – 8
Number of Special characters – 1
Answer
import java.util.Scanner;
public class KboatCount
{
public static void main(String args[])
{
Scanner in = new Scanner(System.in);
System.out.println("Enter a string:");
String str = in.nextLine();
int len = str.length();
int ac = 0;
int sc = 0;
int dc = 0;
char ch;
for (int i = 0; i < len; i++) {
ch = str.charAt(i);
if (Character.isLetter(ch))
ac++;
else if (Character.isDigit(ch))
dc++;
else if (!Character.isWhitespace(ch))
sc++;
}
System.out.println("No. of Digits = " + dc);
System.out.println("No. of Alphabets = " + ac);
System.out.println("No. of Special Characters = " + sc);
}
}Variable Description Table
Program Explanation
Output
Related Questions
Define a class to accept 10 characters from a user. Using bubble sort technique arrange them in ascending order. Display the sorted array and original array.
Define a class to overload the function print as follows:
void print() - to print the following format
1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5void print(int n) - To check whether the number is a lead number. A lead number is the one whose sum of even digits are equal to sum of odd digits.
e.g. 3669
odd digits sum = 3 + 9 = 12
even digits sum = 6 + 6 = 12
3669 is a lead number.Define a class to accept values into an array of double data type of size 20. Accept a double value from user and search in the array using linear search method. If value is found display message "Found" with its position where it is present in the array. Otherwise display message "not found".
Define a class to accept values in integer array of size 10. Find sum of one digit number and sum of two digit numbers entered. Display them separately.
Example:
Input: a[ ] = {2, 12, 4, 9, 18, 25, 3, 32, 20, 1}
Output:
Sum of one digit numbers : 2 + 4 + 9 + 3 + 1 = 19
Sum of two digit numbers : 12 + 18 + 25 + 32 + 20 = 107