[Java] Binary Conversion

[Jay]

I made two functions - one to convert binary to decimal, and one to convert decimal to binary - out of boredom and as practice.

 

 

    private static int decodeBinary(String Bin) {
        int finalvalue = 0;
        for (int i=0;i<Bin.toString().length();i++) {
        finalvalue += (Math.pow(2,(Bin.toString().length()-i-1))) * (Character.getNumericValue(Bin.toString().charAt(i)));
        } return finalvalue;
    }
    private static String decToBin(Integer Dec) {
        int highest = 0;
        String retBin = "";
        Integer Total = Dec;
        for (int i=0;Math.pow(2,i) <= Dec;i++) { highest=i; }
        for (int i=highest;i>=0;i--) {
            if (Math.pow(2,i) > Total) { retBin = retBin + "0";
            } else {
                Total = (int) (Total - (Math.pow(2, i)));
                retBin = retBin + "1"; } }
        return retBin;
    }

 

decodeBinary("10100111001110") returns 10702

decToBin(10702) returns 10100111001110

[ydoC]

I'd probably comment on how awesome or cool this is, but I honestly have no idea what I'm looking at...

 

=[

[Solo]

nice, this was one of the first problems i did first year university. Although not in java, in scheme.

[Tyrone]

my brain hurts.

[Su lc l De]

my brain hurts.

[Apache]

one day ill know what this is.

[Tayyab-]

I'd probably comment on how awesome or cool this is, but I honestly have no idea what I'm looking at...

 

=[

 

 

my brain hurts.

 

 

my brain hurts.

 

 

one day ill know what this is.

 

^^

[Lawson]

Just finished a Binary to Denary and Hexidecimal assignment for college, that **** is boring.