split float in Java Android

Question

I have a number like 2.75. I want to split this number into two other floats. Here is an example of what I am searching for:

value = 2.75 
value2 = 2.0
value3 = 0.75

I need them in my algorithm, so how could I implement this? I found split() but it returns string. I need floats or integer at least.

Answer 1

You could cast

float value = 2.75f;
int valueTruncated = (int) value;
float value2 = valueTruncated;
float value3 = value - value2;

Answer 2

You can also try this

double value = 2.75;
double fraction=value%1;//Give you 0.75 as remainder 
int integer=(int)value;//give you 2 fraction part will be removed

NOTE: As result may very in fraction due to use of double.You better use

float fraction=(float) (value%1);

if fractional part is big.

Answer 3

Another option is to use split():

double value = 2.75;
/* This won't work */// String[] strValues = String.valueOf(value).split(".");
String[] strValues = String.valueOf(value).split("\\.");
double val1 = Double.parseDouble(strValues[0]); // 2.0
double val2 = Double.parseDouble(strValues[1]); // 0.75

Answer 4

if the input is 59.38 result is n1 = 59 n2 = 38 this is what I came up with:

    int n1, n2 = 0; 
    Scanner scan = new Scanner(System.in);
    double input = scan.nextDouble();

    n1 = (int) input;
    n2 = (int) Math.round((input % 1) * 100);