The old paradigm was going to the project explorer, search for their file inside project and then double-click to open it in editor. It will kill productive if they are working in large projects. Please read this tip to find a faster solution for that.


Instead of browsing the trees to find the java class you can open the file by invoking the “Go to Class” dialog (Alt-Shift-O). You just type in the name of the class - or even it's first letters. Then press enter and voila - there you go.