JavaSE8基础 Integer.toString 将十进制类型转为指定进制[2,36]的表达形式

package jizuiku3;

public class Demo010 {
	public static void main(String[] args) {
		System.out.println(Integer.toString(127, 2));//127的二进制
		System.out.println(Integer.toString(36*35, 36));//127的三十六进制
		//三十六进制 => 26个字母 + 10个数字,(⊙o⊙)哦

	}
}

    public static String toString(int i, int radix) {
        if (radix < Character.MIN_RADIX || radix > Character.MAX_RADIX)
            radix = 10;

        /* Use the faster version */
        if (radix == 10) {
            return toString(i);
        }

        char buf[] = new char[33];
        boolean negative = (i < 0);
        int charPos = 32;

        if (!negative) {
            i = -i;
        }

        while (i <= -radix) {
            buf[charPos--] = digits[-(i % radix)];
            i = i / radix;
        }
        buf[charPos] = digits[-i];

        if (negative) {
            buf[--charPos] = ‘-‘;
        }

        return new String(buf, charPos, (33 - charPos));
    }