So in the videos I'm using to learn java they place a 'f' after float (per java rules), and he tells you to place a 'd' behind a decimal number and I want to know if its a good practice to do so?

```
int myIntValue = 5;
float myFloatValue = 5f;
double myDoubleValue = 5d ;
System.out.println("myIntValue = " + myIntValue);
System.out.println("myFloatValue = " + myFloatValue);
System.out.println("myDoubleValue = " + myDoubleValue);

```