Java rounds number i don't want?

Question

class CombatCalc {
    public static void main(String[] args) {
         int att = 99;
         int str = 99;
         int def = 97;
         int hp = 99;
         int pray = 74;
         int mage = 97;
         int range = 89;
         int a = def*100;
         int b = hp*100;
          int c;
              if (pray % 2 ==0){  //number is even
                    c = pray * 50;
               }else{
                    c = ((pray - 1) * 50);      //number is odd
         double basecomb = ((a + b + c)/400);
         int d = att*130;
         int e = str*130;
               int f;
               int g;
              if (range % 2 !=0){ //number is odd
                    f = ((range -1)+(range*2))*65;
               }else{
                    f = range*195;
               if (mage % 2 !=0){ //number is odd
                    g = ((mage -1)+(mage*2))*65;
               }else{
                    g = mage*195;
          double meleecmb = 0;
          meleecmb = ((d+e)/400);
          double magecmb = 0;
          magecmb =  g/400;
          double rangecmb = 0;
          rangecmb = f/400;
          double cmb = 0;
          if (meleecmb > rangecmb || meleecmb > magecmb){
                cmb = basecomb + meleecmb;
          }else if (rangecmb > magecmb || rangecmb > meleecmb){
                cmb = basecomb + rangecmb;
          }else if (magecmb > rangecmb || magecmb > meleecmb){
                cmb = basecomb + magecmb;
        System.out.println("Base= " + basecomb); // Display the string.
        System.out.println("Melee= " + meleecmb); // Display the string.
        System.out.println("Range= " + rangecmb); // Display the string.
        System.out.println("Mage= " + magecmb); // Display the string.
        System.out.println(cmb); // Display the string.
}It rounds all numbers i get, If i take a calculator and calculate them manually, i get other results, for example basecomb = ((a+b+c)/400), in this case i get (9900+9700+3700)/400=58,25, But it prints out 58. For everything, it rounds down, I don't want it to round, What should i do? Is there a mistake somewhere?

Answer 1

The problem here is that you're using integer division.
Even though you've created basecomb to be a double, the inputs a, b, c, and 400 are all integers, so Java assumes you are doing integer division, and truncates the results.
The easiest way to fix this is to change 400 to 400.0 or 400f, both of which tell java that it is a floating point number, so it will perform floating point division and won't truncate the result.
- Adam