Java/Conversions/HexaDecimalToBinary.java at master · iDev-git/Java · GitHub

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package Conversions;

// Hex [0-9],[A-F] -> Binary [0,1]

public class HexaDecimalToBinary {

private final int LONG_BITS = 8;

public void convert(String numHex) {

// String a HexaDecimal:

int conHex = Integer.parseInt(numHex, 16);

// Hex a Binary:

String binary = Integer.toBinaryString(conHex);

// Output:

System.out.println(numHex + " = " + completeDigits(binary));

}

public String completeDigits(String binNum) {

for (int i = binNum.length(); i < LONG_BITS; i++) {

binNum = "0" + binNum;

}

return binNum;

}

public static void main(String[] args) {

// Testing Numbers:

String[] hexNums = {"1", "A1", "ef", "BA", "AA", "BB", "19", "01", "02", "03", "04"};

HexaDecimalToBinary objConvert = new HexaDecimalToBinary();

for (String num : hexNums) {

objConvert.convert(num);

}