Save value after the comma JAVA

You can turn it into String and break it to get the value, like this:

double f = 175.0 / 10.0; // f tem o valor 17.5
String s = String.valueOf(f); // converter para String

String s1 = s.split("\.")[1]; //quebrar aonde esta o ponto e pegar o valor após

double x  = Double.valueOf(s1); //converter de volta para double

Note that the parameter of the split() method requires both bars because the point is a special character.

Use the module operator, which returns you the rest of a division, which is the value you want:

int x = 175%10 //resultado é 5

You do not even need to split and then work with the decimal. You can already get it directly using this technique.

Using the conversion to String, you can do this as follows.

Declare and initialize the variables you will use:

double divisor = 10;
double dividendo = 175;
double resultado = 0;
int casaDecimal = 0;

Perform split operation:

resultado = dividendo/divisor;

Convert the result to a string:

String resultadoString = String.valueOf(resultado);

Now you perform the Split operation and store the value of the second split part in the String resultString (You need to use the Pattern class and the quote , because "." is recognized as a regex ):

resultadoString = resultadoString.split(Pattern.quote("."))[1];

Now just convert the String to integer (in the example) or double, as you wish:

cadaDecimal = Integer.valueOf(resultadoString);