Use eclipse It's always a mess after a long time ,eclipse Support drag and drop , But sometimes it's not so good , therefore , We can use a function to refresh the layout , The operation is shown in the figure below :
—>—>
 Insert picture description here
After the above three steps, the following prompt box will appear , intend : Do you want to refresh your current Java The layout of editing mode , Restore it to the default style ;
We just need to click !
 Insert picture description here