Java program to find the percentage of uppercase, lowercase, digits and special characters in a String

by Online Tutorials Library July 22, 2022

Java program to find the percentage of uppercase, lowercase, digits and special characters in a string

File: CharacterPercentage .java

 import java.text.DecimalFormat;   public class CharacterPercentage {   static void charPercentage(String input) { int totalChar = input.length(); int upperCase = 0; int lowerCase = 0; int digits = 0; int others = 0; for (int i = 0; i < input.length(); i++) { char ch = input.charAt(i); if (Character.isUpperCase(ch)) { upperCase++; } else if (Character.isLowerCase(ch)) { lowerCase++; } else if (Character.isDigit(ch)) { digits++; } else { others++; } } double upperCaseLetterPercentage = (upperCase * 100) / totalChar; double lowerCaseLetterPercentage = (lowerCase * 100) / totalChar; double digitsPercentage = (digits * 100) / totalChar; double otherCharPercentage = (others * 100) / totalChar;   DecimalFormat format = new DecimalFormat(“##.##”); System.out.println(“In ‘” + input + “‘ : “); System.out.println(“Uppercase letters are ” + format.format(upperCaseLetterPercentage) + “% “); System.out.println(“Lowercase letters are ” + format.format(lowerCaseLetterPercentage) + “%”); System.out.println(“Digits Are ” + format.format(digitsPercentage) + “%”); System.out.println(“Other Characters Are ” + format.format(otherCharPercentage) + “%”);   } public static void main(String[] args) { charPercentage(“India is my country 100%”); }   } 

Output:

In 'India is my country 100%' :  Uppercase letters are 4%  Lowercase letters are 62% Digits Are 12% Other Characters Are 20%

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