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Let's say I have the following code:
System.out.println(Math.PI);
Is there a plugin or some setting where I can hover over Math.PI and have IntelliJ tell me the value of the constant?
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Step Over (F8) lets you execute a line of code and move on to the next line. As you step through the code, you'll see the value of the variables next to the code in the editor window. These values are also visible in the Variables pane in the Debug window.
Static variables can be accessed by calling with the class name ClassName. VariableName. When declaring class variables as public static final, then variable names (constants) are all in upper case. If the static variables are not public and final, the naming syntax is the same as instance and local variables.
A static variable is common to all the instances (or objects) of the class because it is a class level variable. In other words you can say that only a single copy of static variable is created and shared among all the instances of the class.
Static variables are known to retain the value even after they exit the scope. They retain their value and are not initialized again in the new scope. This article will help you explore Static variable in C.
Press ctrl + q (or ctrl + j on mac) to activate the quick documentation action to see a documentation popup for this constant:
Also you could hover over PI with pressed ctrl:
Furthermore, you always can jump to the source code by ctrl + b.
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By hitting Ctrl+Shift+I (if you're OSX user Option+Space) you will see the method, function, constant, variable definition in window popup.
Example with Objects#equals method:
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