Code formatting differs across developers. We should be at least consistent since odd formatting makes reading code more difficult for obvious reasons.
The most prominent differences I am aware of are

• use spaces vs tabs
• differences in formatting "if statements" (as displayed here):

  if(XX){
  

  vs

  if (XX) {
  

• insonsitent code identations like displayed here:

      public void method() {
   int i = 0;
   i++;
        i +=2;
  

• odd identations of whole anonymous classes as displayed here

               class Listener {
  int i = 0;
   public void method()        {
               }
     }
  

• multiple empty lines for no obvious reason like shown here

  public class ZZ {
  
  
      int i = 0;
  
  
     i++
  }