float

The $\lstinline{float}$ data type is a single-precision 32-bit floating-point. Learn more about single-precision and double-precision floating-point if you are interested. It should never be used for precise values such as currency. Default value is 0.0 (0.0f).

$\begin{lstlisting} class FloatExample { public static void main(String[] args) ... ...r float number = -42.3f; System.out.println(number); } } \par \end{lstlisting}$

Notice that, we have used $-42.3f$ instead of $-42.3$ in the above program. It's because $-42.3$ is a double literal. To tell the compiler to treat $-42.3$ as $\lstinline{float}$ rather than $\lstinline{double}$ , you need to use f or F.