Java program to count the occurrences of each character

Write a Java program which prints number of occurrences of each characters and also it should not print repeatedly occurrences of duplicate characters as given in the example:
Examples: 

Input : geeksforgeeks
Output :
Number of Occurrence of g is:2
Number of Occurrence of e is:4
Number of Occurrence of k is:2
Number of Occurrence of s is:2
Number of Occurrence of f is:1
Number of Occurrence of o is:1
Number of Occurrence of r is:1

Approach:

The idea is to create a count array of size 256. Traverse input string and for every character increment its count. 

JAVA

// Java program for the above approach
class NoOfOccurrenceOfCharacters {
    static final int MAX_CHAR = 256;

    static void getOccurringChar(String str)
    {

        // Create an array of size 256
        // i.e. ASCII_SIZE
        int count[] = new int[MAX_CHAR];

        int len = str.length();

        // Initialize count array index
        for (int i = 0; i < len; i++)
            count[str.charAt(i)]++;

        // Create an array of given String size
        char ch[] = new char[str.length()];
        for (int i = 0; i < len; i++) {
            ch[i] = str.charAt(i);
            int find = 0;
            for (int j = 0; j <= i; j++) {

                // If any matches found
                if (str.charAt(i) == ch[j])
                    find++;
            }

            if (find == 1)
                System.out.println(
                    "Number of Occurrence of "
                    + str.charAt(i)
                    + " is:" + count[str.charAt(i)]);
        }
    }

    // Driver Code
    public static void main(String[] args)
    {
        String str = "geeksforgeeks";
        getOccurringChar(str);
    }
}

Output: 

Number of Occurrence of g is:2
Number of Occurrence of e is:4
Number of Occurrence of k is:2
Number of Occurrence of s is:2
Number of Occurrence of f is:1
Number of Occurrence of o is:1
Number of Occurrence of r is:1

Time complexity: O(n²)

Auxiliary Space: O(256)

Example: Count total number of character in the string.

Java

/*package whatever //do not write package name here */

import java.io.*;
import java.util.Scanner;
class Program {
    public static void main(String[] args)
    {
        Scanner in = new Scanner(System.in);
        String str;
        int count = 0;
        /*Taking user input*/
        System.out.println("Enter any string");
        str = in.nextLine();
        for (int i = 0; i < str.length(); i++) {
            /*incrementing the count*/
            count++;
        }
        System.out.println(
            "Total number of character in string is "
            + count);
    }
}