12、JAVA 遞迴實現十進位到N進位的轉換–未考慮負數

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 /**   * baseString 遞迴調用   * @param num 十進位數   * @param base 要轉換成的進位數   */   public static String baseString(int num,int base) {   String str = "", digit = "0123456789abcdef";   if(num == 0){   return "";   }else {   str = baseString(num / base,base);   return str + digit.charAt(num % base);   }   }

以上方法是遞迴實現十進位到N進位的轉換

2、非遞迴

public class TransToBinary {public static void main(String[] args){int number=123;String a = translate(number);System.out.println(a);}public static String translate(int num){StringBuffer binary = new StringBuffer();while(num != 0 && num != 1){binary.insert(0, num%2);num = num/2;if(num ==0 || num==1){binary.insert(0, num%2);}}return binary.toString();}}

輸出結果為:1111011

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