class ArrayTest7
{
public static void main(String[] args)
{
toBin(-6);
System.out.println();
toOc(8);
System.out.println();
toHex(60);
}
/*
十进制-->二进制
*/
public static void toBin(int num)
{
trans(num,1,1);
}
/*
十进制-->八进制
*/
public static void toOc(int num)
{
trans(num,7,3);
}
/*
十进制-->十六进制
*/
public static void toHex(int num)
{
trans(num,15,4);
}
public static void trans(int num,int base,int offset)
{
if(num==0)
{
System.out.print(0);
return;
}
char[] chs = { '0','1','2','3',
'4','5','6','7',
'8','9','A','B',
'C','D','E','F',};
char[] arr = new char[32];
int pos = arr.length;
while(num!=0)
{
int temp = num & base;
arr[--pos] = chs[temp];
num = num >>> offset;
}
for(int x=pos; x<arr.length; x++)
{
System.out.print(arr[x]);
}
}
}
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