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Normally you would expect just hovering over a method it would show a popup of the return type.
How do you get this information in intellij ultimate?
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A method returns to the code that invoked it when it completes all the statements in the method, reaches a return statement, or throws an exception, whichever occurs first. You declare a method's return type in its method declaration. Within the body of the method, you use the return statement to return the value.
on the toolbar in the Find tool window or press Ctrl+Alt+Shift+F7 . While in the Find tool window, you can also use the Preview area to check the places where the usages were found, to see a call hierarchy for methods, data flow for fields, and so on.
In IntelliJ IDEA, you can see where and how symbols, such as tags, classes, fields, methods, or functions are defined in your project. For this purpose, the IDE features the Quick Definition popup. To view definition of a symbol, select it in the editor and press Ctrl+Shift+I (or click View | Quick Definition).
To extract method:Press Ctrl+Alt+M or from the main menu, select Refactor | Extract | Method. In the dialog that opens, configure a method options, such as visibility, parameters, and so on. You can also change a name of the method if you need. Click OK.
You hover it and hold down CTRL in windows or CMD in Mac
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Hit Ctrl + Q (or ⌃J on Mac) when cursor is on a method declaration or call. It will show you the pop-up you want. As a bonus: Ctrl + Shift + I will display method body as well in a pop-up.
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