Finish code to Convert Decimal to Binary, bin to dec, hexadec to dec, dec to hexadec, hexadec to binary & binary to hexadec.

Question

public class Dec2Bin {
public static void main(String[] args){
int num = 355;
public static String dec2Bin(int preOp)// this is the integer before the operation.
String tmpStr = null;
Integer quo;
Integer = mod;
quo = preOp/2;
mod = preOp%2;
if(quo == 0)
return tmpStr;
else
return tmpStr+dec2Bin(int preOp);
}
}

Answer 1

1. First of all your method cannot be inside main
2. what is the statement "Integer=mod"
3. return tmpStr+dec2Bin(int preOp); // why do you use int inside parentheses ?
4. There are missing '}'
5. Add your code to playground and share the link