Question

A class Capital has been defined to check whether a sentence has words beginning with a capital letter or not.
Some of the members of the class are given below:
Class name:Capital
Data member/instance variable:
sent:to store a sentence
freq :stores the frequency of words beginning with a capital letter

Member functions/methods:
Capital( ):default constructor

void input():to accept the sentence

boolean isCap(String w):checks and returns true if word begins with a capital letter, otherwise returns false

void display ():displays the sentence along with the frequency of the words beginning with a capital letter

Specify the class Capital, giving the details of the constructor( ), void input( ), boolean isCap(String) and void display( ). Define the main( ) function to create an object and call the functions accordingly to enable the task.

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Code

				
					import java.util.Scanner;
public class Capital
{
    String sent;
    int freq;
    Capital()
    {
        sent=""; 
        freq=0;
    }

    void input()
    {
        Scanner sc=new Scanner(System.in); 
        System.out.println("Enter the sentence");
        sent=sc.nextLine();
        sent=sent+" ";
    }

    boolean isCap(String w)
    {
        char ch=w.charAt(0) ;
        if (Character.isUpperCase(ch)==true)
        {
            return true;
        }
        else
        {
            return false;
        }
    }
    
    void display()
    { 
        System.out.println("Original sentence="+sent); 
        String wd="";
        char ch=' ';
        for (int i=0;i< sent.length();i++)
        { 
            ch=sent.charAt(i);
            if(ch==' ')
            {
                if(isCap(wd)==true)
                {
                    freq=freq+1;
                }
                wd="";
            }
            else
            {
                wd=wd+ch;
            }
        }
    

        System.out.println("Freqency of  word with first letter a Capital letter ="+freq) ;
    }


    public static void main()
    {
        Capital ob1=new Capital(); 
        ob1.input();
        ob1.display() ;
    }
}