Question

Write a program in java to read a string object consisting 300 characters or more using index input Stream reader. The program should perform following operations. The String must have proper words and all kind of characters.(Use String class methods).

a, Determine the length of the string count the number of letters in the strings

, count the number of numeric object

d. Calculate the number of special character

e. Compute the ratio of the numeric to the total

f. Compute the rate of space character to all special characters.

g. Find the position of character in the first occurrence.

h. Then find the position of this character in the first 50 characters.

I. Find the position of (a) after the 15^th character.

j. If the word on the first starts with a change to upper case.

k. Find the position of each ($).

If a line ends with a period. Count the number of lines with such construct.

Count the number of space on the last line.

Please write it in a simple way.

Answer 1

import java.util.*;

import java.lang.*;

import java.io.*;

import java.util.Scanner;

class Exercise38

{

public static void main(String[] args)//throws Exception

{

Scanner sc=new Scanner(System.in);  

  

System.out.println("Enter a string:");

String test=sc.next();

System.out.println("String is:"+test);

char[] ch = test.toCharArray();

char dollar='$';

int letter = 0;

int space = 0;

int num = 0;

int other = 0;

int d=0;

for(int i = 0; i < test.length(); i++){

if(Character.isLetter(ch[i])){

letter ++ ;

}

else if(Character.isDigit(ch[i])){

num ++ ;

}

else if(Character.isSpaceChar(ch[i])){

space ++ ;

}

else if(ch[i]==dollar){

d++ ;

}

else{

other ++;

}

}

double ratio=(num/letter);

System.out.println("The string length is: "+test.length());

System.out.println("letter: " + letter);

System.out.println("space: " + space);

System.out.println("number: " + num);

System.out.println("Dollar " + d);

System.out.println("Ratio of number to letters= " + ratio);

}

};