Two small comments:

**Naming:**  
The convention for variable names in Java is `camelCase`. Your `animationframe` should instead be `animationFrame` when going by that rule.

**Braces:**  
It's also convention to place all if-blocks in braces, disregarding whether they have to, or not. This is to decrease the possibility of bugs when changing such blocks and forgetting braces.

    if(animationFrame == 3){
        animationFrame = 0;
    }

Also the Java-Coding-Standard is 4 spaces indentation. It might be, that the markup for SE broke yours, but either way, your first if-statement is too far in.