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ICSE Class 10 Computer Applications Question 20 of 36

String Handling — Question 21

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21
Question

Question 8

Write a program to input a string and print each word of the string in the reverse order.
Sample Input:
Enter a string: My name is Raman
Sample Output
yM eman si namaR

import java.util.Scanner;

public class KboatWordsReverse
{
   public static void main(String args[]) {
        Scanner in = new Scanner(System.in);
        System.out.println("Enter a sentence:");
        String str = in.nextLine();
             
        str += " ";
        int len = str.length();
    
        String word = "";
        int wLen = 0;
        char ch;

        for (int i = 0; i < len; i++) {
            ch = str.charAt(i);
            if (ch != ' ')   {
                word = word + ch;  
            }
            else {
                wLen = word.length();
                for(int j = wLen - 1; j >= 0; j--) {
                    System.out.print(word.charAt(j));
                }
                System.out.print(' ');
                word = "";
            }
        } 
    }
}
Output
BlueJ output of KboatWordsReverse.java
Answer

Source: This question is from String Handling, Computer Applications — Class 10, ICSE Board.

Key Concepts Covered

This question tests your understanding of the following concepts from the chapter String Handling: Question, Program, Input, String, Print, Word. These are fundamental topics in Computer Applications that students are expected to master as part of the ICSE Class 10 curriculum.

A thorough understanding of these concepts will help you answer similar questions confidently in your ICSE examinations. These topics are frequently tested in both objective and subjective sections of Computer Applications papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.

How to Approach This Question

Read the question carefully and identify what is being asked. Break down complex questions into smaller parts. Use the terminology and concepts discussed in this chapter. Structure your answer logically — begin with a definition or key statement, then provide supporting details. Review your answer to ensure it addresses all parts of the question completely.

Key Points to Remember

  • Write programs with proper indentation and comments.
  • Trace through your code with sample inputs to verify correctness.
  • Explain the logic behind each step of your solution.
  • Familiarise yourself with common library functions and methods.

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