Computer Applications
Write a program in Java to enter any sentence. Also ask the user to enter a word. Print the number of times the word entered is present in the sentence. If the word is not present in the sentence, then print an appropriate message.
Answer
import java.util.Scanner;
public class KboatWordFrequency
{
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.println("Enter a sentence:");
String str = in.nextLine();
System.out.println("Enter a word:");
String ipWord = in.nextLine();
str += " ";
String word = "";
int count = 0;
int len = str.length();
for (int i = 0; i < len; i++) {
if (str.charAt(i) == ' ') {
if (word.equalsIgnoreCase(ipWord))
count++ ;
word = "";
}
else {
word += str.charAt(i);
}
}
if (count > 0) {
System.out.println(ipWord + " is present " + count + " times.");
}
else {
System.out.println(ipWord + " is not present in sentence.");
}
}
}Output
Related Questions
Write a Java program to enter any sentence and convert the sentence to uppercase. Print only those words of the sentence whose first and last letters are the same.
The output of a program which extracts a part of the string "SUBMISSION" is as follows:
(a) "MISS"
(b) "MISSION"If
String str = "SUBMISSION";write appropriate Java statements to get the above outputs.Which of the following returns a value greater than or equal to 0?
A university student's registration number follows the format:
<CourseCode><Year><CollegeCode><RollNumber>
where
Component Description CourseCode A 3-letter code representing the course (e.g., CSE for Computer Science, ECE for Electronics & Communication) Year The last two digits of the admission year. CollegeCode A 3-digit code representing the college RollNumber A 4-digit unique student roll number. Examples
Registration Number Course Code Admission Year College Code Roll Number CSE240011023 CSE 24 001 1023 ECE252104297 ECE 25 210 4297 ASE230277259 ASE 23 027 7259 Define a class that accepts a student's registration number as input, extracts the relevant details, and displays them in the specified format.
import java.util.Scanner; public class KboatStuRegNum { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.print("Enter reg. no.: "); _______(1)_________ int l = n.length(); if (l != 12) { System.out.println("Invalid reg. no."); System.exit(0); } _______(2)_________ _______(3)_________ _______(4)_________ _______(5)_________ System.out.println("Course Code : " + cc); System.out.println("Admission Year : " + yr); System.out.println("College Code : " + cl); System.out.println("Roll Number : " + rNo); } }