int length = 343; // 343 is the literal

Floating-point numbers are defined as a number, a decimal symbol, and more numbers representing the fraction. For

example,

{% highlight java %}

double d = 11301874.9881024;

{% endhighlight %}

By default, floating-point literals are defined as `double` (64 bits) so if you want to assign a floating-point literal

to a variable of type `float` (32 bits), you must attach the suffix `F` or `f` to the number. So, the below code

generates a compiler error:

{% highlight java %}

float f = 23.467890; // Compiler error, possible loss

// of precision

{% endhighlight %}

This happens because we're trying to fit a larger number (64 bits) into a (potentially) less precise "container"

(32 bits).

Now as by default floating-point literals are of type `double`, it is optional to attach a suffix of `D` or `d` when you

want to assign it to a variable of type `double`. For example,

{% highlight java %}

double d = 110599.995011D; // Optional, not required

double g = 987.897; // No 'D' suffix, but OK because the

// literal is a double by default

{% endhighlight %}