Question

Write a java method that takes a string and returns an array of int that contains the corresponding alphabetic order of each letter in the received string:

An illustration:

the method takes: "Sara"

the method returns: {4,1,3,2}

another illustration:

the method takes: "hey"

the method returns: {2,1,3}

Answer 1

Code:

import java.util.*;

public class alphabetOrder

{

static int[] findOrder(String str)

{

// Storing the size of the string

int strSize = str.length();

// This value is used to keep track of order of the character

int value = 0;

// Declaring an array whose size is same as the size of the string

int order[] = new int[strSize];

// Iterating over ASCII values of lowercase alphabets

for (int i = 97; i <= 122; i++)

{

// Iterating over the string

for (int j = 0; j < strSize; j++)

{

// If the ASCII value of character at index j in the string str is equal to i

if ((int) str.charAt(j) == i)

{

// Increment the value by 1

value++;

// Storing the value at index j in the array

order[j] = value;

}

}

}

// Returning the order array

return order;

}

public static void main(String[] args)

{

// Creating an scanner object

Scanner inp = new Scanner(System.in);

// Prompting the user to enter the string

System.out.print("Enter the string: ");

// Reading the string from the user

String str = inp.nextLine().toLowerCase();

// Storing the int array returned by the findOrder method

int result[] = findOrder(str);

// Printing the result array

System.out.println(Arrays.toString(result));

// Closing the scanner object

inp.close();

}

}

Sample Output: