java实现进制转换demo

java实现进制转换demo 代码实现任意整数任意进制的转换demo

实现口诀：累除取整到最小。求余串连新进制。

public class Main {
	public static void main(String[] args) {
	    
	    int scale = 2;//多少进制
	    String result = "";//转换后的数
	    int t1 = 1234;//待转换数
	    int temp = 0;//临时参数
	    while(t1 != 0){
	        temp = t1%scale;
            t1 /= scale;
	        result= temp+result;//倒连
	    }
		System.out.println(result);
	}
}

任意数据类型任意进制转换任意进制

public class Main {
        //设置字符数组
		//可以添加任意不重复字符，提高能转换的进制的上限
		static char chs[] = new char[36];
		static {
			for(int i = 0; i < 10 ; i++) {
				chs[i] = (char)('0' + i);
			}
			for(int i = 10; i < chs.length; i++) {
				chs[i] = (char)('A' + (i - 10));
			}
		}
		
		
		static String transRadix(String num, int fromRadix, int toRadix) {
			int number = Integer.valueOf(num, fromRadix);
			StringBuilder sb = new StringBuilder();
			while (number != 0) {
				sb.append(chs[number%toRadix]);
				number = number / toRadix;
			}
			return sb.reverse().toString();
			
		}
		//测试
		public static void main(String[] args) {
			System.out.println(transRadix("1234", 10, 2));
		}
}