Java decomposition integer [10 hundred] (array case), java Array

Java decomposition integer [10 hundred] (array case), java Array

Calculate a single digit of several double digits, ten digits and hundreds of digits:

Int num = 53;

Int g = num % 10; // a bit
Int s = (num/10) % 10; // ten
Int B = (num/100); // bits

 

The following is a general case of sharding integers written in java. It is worth studying.

1 import java. util. outputs; // import the input library 2 class numbers 3 {4 public static void main (String [] args) 5 {6 // enter a maximum of billions of characters 7 // create an array, returns 8 String [] str = new String [] {"10", "100,000 ", "Millions", "tens of millions", "hundreds of millions", "billions", "tens of billions", "hundreds of billions"}; 9 10 systems. out. println ("enter a number:"); 11 bytes sca = new bytes (System. in); 12 13 // number of user input accepted 14 long sum = sca. nextInt (); // declare a long integer variable 15 long sum2 = sum; // separate and Judge positive and negative numbers 16 int a = 0; 17 18 for (int I = 0; I <32; I ++) 19 {20 // determine the number of user input digits 21 if (sum/10> 0) {// a single digit is greater than 0, positive number 22 sum = sum/10; 23 a ++; 24} else {25 break; 26} 27} 28 29 if (sum2 <10) // if it is negative 30 {31 long k = sum; 32 System. out. println ("this number has only one digit" + k); // 33 34} else {35 // splits the number of user inputs into 36 for (int I = 0; I <= a; I ++) 37 {38 if (I = 0) 39 {40 long c = sum2 % 10; // single digit 41 System. out. println ("the number of digits is:" + c); 42 43} else if (I <a) {44 // here we must convert the double value of this function; 45 long new1 = (long) Math. pow (10, I); 46 47 // parameter description: m is the number of required Parties, n is the power of 48 long B = sum2/new1 % 10; 49 System. out. println ("this number of" + str [I-1] + "Yes:" + B); 50 51} else {52 long new2 = (long) Math. pow (10, I); 53 long h = sum2/new2 % 10; 54 System. out. println ("this number of" + str [I-1] + "Yes:" + h); 55} 56} 57 58} 59 60} 61}

Momo said: the number of programming languages is the same. java is inherited from c, c ++, oc and other languages, so the fundamental principle remains unchanged.