style: enable HideUtilityClassConstructor in checkstyle (#5147)

src/main/java/com/thealgorithms/conversions/AnyBaseToAnyBase.java

@@ -13,7 +13,9 @@ import java.util.Scanner;
  * @author Michael Rolland
  * @version 2017.10.10
  */
-public class AnyBaseToAnyBase {
+public final class AnyBaseToAnyBase {
+    private AnyBaseToAnyBase() {
+    }
 
     /**
      * Smallest and largest base you want to accept as valid input

src/main/java/com/thealgorithms/conversions/AnyBaseToDecimal.java

@@ -4,7 +4,9 @@ package com.thealgorithms.conversions;
  * @author Varun Upadhyay (<a href="https://github.com/varunu28">...</a>)
  */
 // Driver program
-public class AnyBaseToDecimal {
+public final class AnyBaseToDecimal {
+    private AnyBaseToDecimal() {
+    }
 
     public static void main(String[] args) {
         assert convertToDecimal("1010", 2) == Integer.valueOf("1010", 2);

src/main/java/com/thealgorithms/conversions/AnytoAny.java

@@ -6,7 +6,9 @@ import java.util.Scanner;
 // number.
 // sn ,sb,db ---> ()dn  .   this is what we have to do    .
 
-public class AnytoAny {
+public final class AnytoAny {
+    private AnytoAny() {
+    }
 
     public static void main(String[] args) {
         Scanner scn = new Scanner(System.in);

src/main/java/com/thealgorithms/conversions/BinaryToDecimal.java

@@ -5,7 +5,9 @@ import java.util.Scanner;
 /**
  * This class converts a Binary number to a Decimal number
  */
-class BinaryToDecimal {
+final class BinaryToDecimal {
+    private BinaryToDecimal() {
+    }
 
     public static long binaryToDecimal(long binNum) {
         long binCopy, d, s = 0, power = 0;

src/main/java/com/thealgorithms/conversions/BinaryToHexadecimal.java

@@ -8,7 +8,9 @@ import java.util.Scanner;
  *
  * @author Nishita Aggarwal
  */
-public class BinaryToHexadecimal {
+public final class BinaryToHexadecimal {
+    private BinaryToHexadecimal() {
+    }
 
     /**
      * This method converts a binary number to a hexadecimal number.

src/main/java/com/thealgorithms/conversions/BinaryToOctal.java

@@ -7,7 +7,9 @@ import java.util.Scanner;
  *
  * @author Zachary Jones
  */
-public class BinaryToOctal {
+public final class BinaryToOctal {
+    private BinaryToOctal() {
+    }
 
     /**
      * Main method

src/main/java/com/thealgorithms/conversions/DecimalToAnyBase.java

@@ -8,7 +8,9 @@ import java.util.ArrayList;
  * @author Varun Upadhyay (<a href="https://github.com/varunu28">...</a>)
  */
 // Driver Program
-public class DecimalToAnyBase {
+public final class DecimalToAnyBase {
+    private DecimalToAnyBase() {
+    }
 
     public static void main(String[] args) throws Exception {
         BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

src/main/java/com/thealgorithms/conversions/DecimalToBinary.java

@@ -5,7 +5,9 @@ import java.util.Scanner;
 /**
  * This class converts a Decimal number to a Binary number
  */
-class DecimalToBinary {
+final class DecimalToBinary {
+    private DecimalToBinary() {
+    }
 
     /**
      * Main Method

src/main/java/com/thealgorithms/conversions/DecimalToHexaDecimal.java

@@ -1,7 +1,9 @@
 package com.thealgorithms.conversions;
 
 // hex = [0 - 9] -> [A - F]
-class DecimalToHexaDecimal {
+final class DecimalToHexaDecimal {
+    private DecimalToHexaDecimal() {
+    }
 
     private static final int SIZE_OF_INT_IN_HALF_BYTES = 8;
     private static final int NUMBER_OF_BITS_IN_HALF_BYTE = 4;

src/main/java/com/thealgorithms/conversions/DecimalToOctal.java

@@ -5,7 +5,9 @@ import java.util.Scanner;
 /**
  * This class converts Decimal numbers to Octal Numbers
  */
-public class DecimalToOctal {
+public final class DecimalToOctal {
+    private DecimalToOctal() {
+    }
 
     /**
      * Main Method

src/main/java/com/thealgorithms/conversions/HexToOct.java

@@ -7,7 +7,9 @@ import java.util.Scanner;
  *
  * @author Tanmay Joshi
  */
-public class HexToOct {
+public final class HexToOct {
+    private HexToOct() {
+    }
 
     /**
      * This method converts a Hexadecimal number to a decimal number

src/main/java/com/thealgorithms/conversions/HexaDecimalToDecimal.java

@@ -2,7 +2,9 @@ package com.thealgorithms.conversions;
 
 import java.util.Scanner;
 
-public class HexaDecimalToDecimal {
+public final class HexaDecimalToDecimal {
+    private HexaDecimalToDecimal() {
+    }
 
     // convert hexadecimal to decimal
     public static int getHexaToDec(String hex) {

src/main/java/com/thealgorithms/conversions/IntegerToRoman.java

@@ -7,7 +7,9 @@ package com.thealgorithms.conversions;
  * ('I', 1); ('IV',4); ('V', 5); ('IX',9); ('X', 10); ('XL',40); ('L', 50);
  * ('XC',90); ('C', 100); ('D', 500); ('M', 1000);
  */
-public class IntegerToRoman {
+public final class IntegerToRoman {
+    private IntegerToRoman() {
+    }
 
     private static final int[] ALL_ROMAN_NUMBERS_IN_ARABIC = new int[] {
         1000,

src/main/java/com/thealgorithms/conversions/OctalToBinary.java

@@ -6,7 +6,9 @@ package com.thealgorithms.conversions;
  * @author Bama Charan Chhandogi
  */
 
-public class OctalToBinary {
+public final class OctalToBinary {
+    private OctalToBinary() {
+    }
     public static long convertOctalToBinary(int octalNumber) {
         long binaryNumber = 0;
         int digitPosition = 1;

src/main/java/com/thealgorithms/conversions/OctalToDecimal.java

@@ -7,7 +7,9 @@ import java.util.Scanner;
  *
  * @author Zachary Jones
  */
-public class OctalToDecimal {
+public final class OctalToDecimal {
+    private OctalToDecimal() {
+    }
 
     /**
      * Main method

src/main/java/com/thealgorithms/conversions/OctalToHexadecimal.java

@@ -7,7 +7,9 @@ import java.util.Scanner;
  *
  * @author Tanmay Joshi
  */
-public class OctalToHexadecimal {
+public final class OctalToHexadecimal {
+    private OctalToHexadecimal() {
+    }
 
     /**
      * This method converts a Octal number to a decimal number

src/main/java/com/thealgorithms/conversions/RgbHsvConversion.java

@@ -13,7 +13,9 @@ import java.util.Arrays;
  * (description adapted from <a href="https://en.wikipedia.org/wiki/RGB_color_model">[1]</a> and
  * <a href="https://en.wikipedia.org/wiki/HSL_and_HSV">[2]</a>).
  */
-public class RgbHsvConversion {
+public final class RgbHsvConversion {
+    private RgbHsvConversion() {
+    }
 
     public static void main(String[] args) {
         // Expected RGB-values taken from https://www.rapidtables.com/convert/color/hsv-to-rgb.html

src/main/java/com/thealgorithms/conversions/RomanToInteger.java

@@ -3,7 +3,9 @@ package com.thealgorithms.conversions;
 import java.util.HashMap;
 import java.util.Map;
 
-public class RomanToInteger {
+public final class RomanToInteger {
+    private RomanToInteger() {
+    }
 
     private static final Map<Character, Integer> ROMAN_TO_INT = new HashMap<>() {
         {

src/main/java/com/thealgorithms/conversions/TurkishToLatinConversion.java

@@ -7,7 +7,9 @@ import java.util.Scanner;
  *
  * @author Özgün Gökşenli
  */
-public class TurkishToLatinConversion {
+public final class TurkishToLatinConversion {
+    private TurkishToLatinConversion() {
+    }
 
     /**
      * Main method