boolean isValidPassword(String password) {
		
		boolean result = false;
		
		if(isValidLength(password) && isUpperLetterPresent(password) && isLowerCaseLetterPresent(password) && isSpecialLetterPresent(password)) {
			
			result = true;
		}
		
		return result;
	}
	
	boolean isUpperLetterPresent(String password) {
		
		boolean result = false;
		
		char[] charArray = password.toCharArray();
		
		for(char ch : charArray) {
			
			if(Character.isUpperCase(ch)) {
				
				result = true;
				break;
			}
		}
		
		return result;
	}
	
	boolean isLowerCaseLetterPresent(String password) {
		
		boolean result = false;
		
		char[] charArray = password.toCharArray();
		
		for(char ch : charArray) {
			
			if(Character.isLowerCase(ch)) {
				
				result = true;
				break;
			}
		}
		
		return result;
	}
	
	boolean isSpecialLetterPresent(String password) {
		
		boolean result = false;
		
		char[] charArray = password.toCharArray();
		
		for(char ch : charArray) {
			
			int type = Character.getType(ch);
			
			if(type == Character.OTHER_PUNCTUATION) {
				
				result = true;
				break;
			}
		}
		
		return result;
	}
	
	boolean isValidLength(String password) {
		
		boolean result = false;
		
		char[] charArray = password.toCharArray();
		
		if(charArray.length > MINIMUM_LENGTH) {
			
			result = true;
		}
		
		return result;
	}