台哥编程课堂

摘要： /** 將數字四捨五入至某小數位, 並返回指定位數字串 function2(123.455,2) => 123.46 function2(123.449,2) => 123.45 function2(123.44,3) => 123.440 function2(123.4455,3) => 123.446 function2(123.4499,3) => 123.450 function2(123.9,0) => 124 程式接口: public static double function2(double value,int decimalPlaces); 阅读全文

摘要： /**返回相同闊度數字型字串. 例: function1(“000000”) => “000001” function1(”0023") => “0024” function1(“0009”) => “0010” function1(“000099”) => “000100” function1(“9”) => “0” //號碼循環再用 程式接口: public static String function1(String num); */ public static String function1(String num){ int length = 阅读全文