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Thread: Help me with my code

  1. #1
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    Default Help me with my code

    The code in bold is not making sense to me...the string array holds 8 different elements containing 4 characters each. Ex. string[0] = "0010"
    string[1] = "0100"

    When if(string[0] == "0010")...gets executed...the line below....s.append(2);.....is not executed...it is skipped...any ideas?

     char[] divide = binaryNumber.toCharArray();
            char[] copy = new char[32];
            String[] string = new String[8];
            int v;
     
            for(int j = 0; j < 32; ++j)
                copy[j] = '0';
     
            for(int c = 0; c < divide.length; ++c)
                copy[c] = divide[c];
     
            StringBuffer a = new StringBuffer();
            StringBuffer b = new StringBuffer();
            StringBuffer c = new StringBuffer();
            StringBuffer d = new StringBuffer();
            StringBuffer e = new StringBuffer();
            StringBuffer f = new StringBuffer();
            StringBuffer g = new StringBuffer();
            StringBuffer h = new StringBuffer();
     
            for(int i = 0; i < 4; ++i)
                a.append(copy[i]); 
            string[0] = a.toString();
     
            for(int j = 4; j < 8; ++j)
                b.append(copy[j]);
            string[1] = b.toString();
     
            for(int k = 8; k < 12; ++k)
                c.append(copy[k]); 
            string[2] = c.toString();
     
            for(int l = 12; l < 16; ++l)
                d.append(copy[l]);
            string[3] = d.toString();
     
            for(int m = 16; m < 20; ++m)
                e.append(copy[m]); 
            string[4] = e.toString();
     
            for(int n = 20; n < 24; ++n)
                f.append(copy[n]);
            string[5] = f.toString();
     
            for(int o = 24; o < 28; ++o)
                g.append(copy[o]); 
            string[6] = g.toString();
     
            for(int p = 28; p < 32; ++p)
                h.append(copy[p]);
            string[7] = h.toString();
     
     
            StringBuffer s = new StringBuffer();
     
            [B]for(int y = 0; y < 8; ++y){
                if(string[y]=="0000")
                    ;
                if(string[y]=="0001")
                    s.append(1);
                if(string[y]=="0010")
                    s.append(2);
                if(string[y]=="0011")
                    s.append(3);
                if(string[y]=="0100")
                    s.append(4);
                if(string[y]=="0101")
                    s.append(5);
                if(string[y]=="0110")
                    s.append(6);
                if(string[y]=="0111")
                    s.append(7);
                if(string[y]=="1000")
                    s.append(8);
                if(string[y]=="1001")
                    s.append(9);
                if(string[y]=="1010")
                    s.append('A');
                if(string[y]=="1011")
                    s.append('B');
                if(string[y]=="1100")
                    s.append('C');
                if(string[y]=="1101")
                    s.append('D');
                if(string[y]=="1110")
                    s.append('E');
                if(string[y]=="1111")
                    s.append('F');[/B]        }


  2. #2
    Member DanBrown's Avatar
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    Thanks and Regards
    Dan Brown

    Common Java Mistakes

  3. #3
    mmm.. coffee JavaPF's Avatar
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    Default Re: Help me with my code

    As Dan has just pointed out.. You have made a common Java mistake.

    if(string[y]=="0000")

    should be

    if(string[y].equals("0000"))

    It's worth reading the link he posted.
    Please use [highlight=Java] code [/highlight] tags when posting your code.
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  4. The Following User Says Thank You to JavaPF For This Useful Post:

    javapenguin (February 4th, 2011)