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{td:width=33%}{align:left}[Previous|Navigation] {span:class=sep}\| {span}{span:class=text}Navigation{span}{align}{td}
{td:width=33%}{align:center}[Top|Quick Start] {span:class=sep}\| {span}{span:class=text}Quick Start{span}{align} {td}
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{redirect:https://www.jetbrains.com/idea/help/quickdiscover-popintellij-up-windowsidea.htmlhtml#QuickPopups|delay=0}

Info

Quick popups are helpful for checking additional information related to the symbol at the caret. Here is a list of popups you should know if you want to be more productive.

...

If you want to quickly look at the implementation of a symbol at the caret, you can call the Quick Definition by pressing

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{span:class=shortcut}Shift{span}
+
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{span:class=shortcut}Ctrl{span}
+
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{span:class=shortcut}I{span}
(
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{span:class=shortcut}Shift{span}
+
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{span:class=shortcut}Cmd{span}
+
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{span:class=shortcut}I{span}
).

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Show usages is a very simple but powerful feature. Just press

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{span:class=shortcut}Alt{span}
+
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{span:class=shortcut}Ctrl{span}
+
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{span:class=shortcut}F7{span}
(
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{span:class=shortcut}Alt{span}
+
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{span:class=shortcut}Cmd{span}
+
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{span:class=shortcut}F7{span}
for Mac) and get a list of usages for any symbol at the caret:

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{div:class=navigation}
{table:width=100%}
{tr}
{td:width=33%}{align:left}[Previous|Navigation] {span:class=sep}\| {span}{span:class=text}Navigation{span}{align}{td}
{td:width=33%}{align:center}[Top|Quick Start] {span:class=sep}\| {span}{span:class=text}Quick Start{span}{align} {td}
{td:width=33%}{align:right}[Next|Folding] {span:class=sep}\| {span}{span:class=text}Folding{span}{align} {td}
{tr}
{table}
{div}