I'm having trouble printing a double number, for example I create a variable of type double, and it receives the one division 1/3, it would have to show 0.3, What do I have to do to print 0.3 ???
public class MeuTeste{
public static void main(String [] a){
double x=1;
double y=3;
System.out.println(x/y);
}
}
//0.3333333333333333
Use the BigDecimal class.
double variavel = 0.3333333333333333;
BigDecimal bd = new BigDecimal(variavel);
bd = bd.setScale(1, BigDecimal.ROUND_HALF_EVEN);
System.out.println(bd.toString());
One more way to format the output value:
double x=1;
double y=3;
double resultado = x/y;
System.out.format("%10.1f%n", resultado);
If you just want to truncate the value to a decimal place, you can do this:
DecimalFormat df = new DecimalFormat("#.#");
System.out.println(df.format(x/y));