- class ArrayTest7
- {
- public static void main(String[] args)
- {
- //toBin(-6);
- //toHex(-60);
- //toBa(60);
- // System.out.println(Integer.toBinaryString(6));
- // System.out.println(Integer.toHexString(6));
- }
- /*
- 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 toBa(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.println(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]);
- }
- return ;
- }
- }
复制代码 看看吧,用数组容器就行, |