Java decimal to hexadecimal string
- 2020-06-03 06:36:08
- OfStack
Base 10 to base 2
class DecToBin
{
public static void main(String[] args)
{
//System.out.println("Hello World!");
long dec = -9223372036854775807l;
// -9223372036854775808 This number is not good, don't try, hey hey
String binStr="";
long decAbs=Math.abs(dec);
while (decAbs>0)
{ binStr=(decAbs&1)+binStr;
decAbs>>=1;
}
binStr= dec<0?"-"+binStr:dec==0?"0":binStr;
System.out.println(binStr);
}
}
Decimal to decimal
class DecToOct
{
public static void main(String[] args)
{
//System.out.println("Hello World!");
long dec=-0;// There are -0 ?
String octStr="";
long decAbs=Math.abs(dec);
while (decAbs>0)
{ octStr=(decAbs&7)+octStr;//
decAbs>>=3;
}
octStr= dec<0?"-"+octStr:dec==0?"0":octStr;
System.out.println(octStr);
}
}
Decimal to decimal
class DecToHex
{
public static void main(String[] args)
{
System.out.println("Hello World!");
long dec=-1;// You don't get negative Numbers on your calculator - . -
String hexStr="";
long decAbs=Math.abs(dec);
while(decAbs>0)
{ long lastFour=decAbs&15;
if (lastFour>9)
hexStr=(char)('A'+lastFour-10)+hexStr;
else hexStr=lastFour+hexStr;
decAbs>>=4;
}
hexStr= dec<0?"-"+hexStr:dec==0?"0":hexStr;
System.out.println(hexStr);
}
}