Created
July 30, 2019 18:59
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Convert Binary Output File to Hex Equivalent
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import java.io.*; | |
private static void convertFileOutputToHex(String fileName) throws IOException { | |
ArrayList<String> programLines = new ArrayList<>(); | |
try { | |
FileReader fr = new FileReader(fileName); | |
BufferedReader br = new BufferedReader(fr); | |
while (br.ready()) { | |
programLines.add(br.readLine()); | |
} | |
} catch (IOException e) { | |
System.out.println("Error - Cannot find binary string input file."); | |
} | |
FileWriter fw = new FileWriter("prog.hex"); | |
for (String line : programLines) { | |
// Pad with leading 0's until | |
while((line.length() % 4) != 0){ | |
line = "0" + line; | |
} | |
// Convert binary digits to hex 4 at a time. | |
String hexStringToPrint = ""; | |
for(int n = 0; n < line.length(); n = n + 4){ | |
// Construct quadlet | |
String quadlet = String.valueOf(line.charAt(n + 0)) + String.valueOf(line.charAt(n + 1)) | |
+ String.valueOf(line.charAt(n + 2)) + String.valueOf(line.charAt(n + 3)); | |
hexStringToPrint = hexStringToPrint + convertBinaryToHex(quadlet); | |
} | |
fw.write(hexStringToPrint); | |
fw.write("\n"); | |
} | |
fw.close(); | |
} | |
private static String convertBinaryToHex(String binaryQuad){ | |
Map<String, String> hexLookUpTable = new HashMap<>(); | |
hexLookUpTable.put("0000", "0"); | |
hexLookUpTable.put("0001", "1"); | |
hexLookUpTable.put("0010", "2"); | |
hexLookUpTable.put("0011", "3"); | |
hexLookUpTable.put("0100", "4"); | |
hexLookUpTable.put("0101", "5"); | |
hexLookUpTable.put("0110", "6"); | |
hexLookUpTable.put("0111", "7"); | |
hexLookUpTable.put("1000", "8"); | |
hexLookUpTable.put("1001", "9"); | |
hexLookUpTable.put("1010", "A"); | |
hexLookUpTable.put("1011", "B"); | |
hexLookUpTable.put("1100", "C"); | |
hexLookUpTable.put("1101", "D"); | |
hexLookUpTable.put("1110", "E"); | |
hexLookUpTable.put("1111", "F"); | |
return hexLookUpTable.get(binaryQuad); | |
} |
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