Merge pull request TheAlgorithms#335 from LeeChungWan/master

Updated DecimalToHexaDecimal.java

Author: varunu28

Conversions/DecimalToHexaDecimal.java

@@ -1,33 +1,30 @@
-import java.lang.StringBuilder;
-import java.util.Scanner;
 
-class Test {
-  private static final int sizeOfIntInHalfBytes = 8;
-  private static final int numberOfBitsInAHalfByte = 4;
-  private static final int halfByte = 0x0F;
-  private static final char[] hexDigits = { 
-    '0', '1', '2', '3', '4', '5', '6', '7', 
-    '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
-  };
+class DecimalToHexaDecimal {
+	private static final int sizeOfIntInHalfBytes = 8;
+	private static final int numberOfBitsInAHalfByte = 4;
+	private static final int halfByte = 0x0F;
+	private static final char[] hexDigits = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E',
+			'F' };
 
-  public static String decToHex(int dec) {
-    StringBuilder hexBuilder = new StringBuilder(sizeOfIntInHalfBytes);
-    hexBuilder.setLength(sizeOfIntInHalfBytes);
-    for (int i = sizeOfIntInHalfBytes - 1; i >= 0; --i)
-    {
-      int j = dec & halfByte;
-      hexBuilder.setCharAt(i, hexDigits[j]);
-      dec >>= numberOfBitsInAHalfByte;
-    }
-    return hexBuilder.toString(); 
-  }
+	// Returns the hex value of the dec entered in the parameter.
+	public static String decToHex(int dec) {
+		StringBuilder hexBuilder = new StringBuilder(sizeOfIntInHalfBytes);
+		hexBuilder.setLength(sizeOfIntInHalfBytes);
+		for (int i = sizeOfIntInHalfBytes - 1; i >= 0; --i) {
+			int j = dec & halfByte;
+			hexBuilder.setCharAt(i, hexDigits[j]);
+			dec >>= numberOfBitsInAHalfByte;
+		}
+		return hexBuilder.toString().toLowerCase();
+	}
 
-  public static void main(String[] args) {
-    Scanner sc = new Scanner(System.in);
-      System.out.println("Write your Number to convert into HexaDecimal: ")
-     int dec = 305445566;
-     String hex = Integer.toHexString(dec);
-     String hex = decToHex(dec);
-     System.out.println(hex);       
-  }
+	// Test above function.
+	public static void main(String[] args) {
+		System.out.println("Test...");
+		int dec = 305445566;
+		String libraryDecToHex = Integer.toHexString(dec);
+		String decToHex = decToHex(dec);
+		System.out.println("Result from the library : " + libraryDecToHex);
+		System.out.println("Result decToHex method : " + decToHex);
+	}
 }