Will JPanel take up ram if it still an object and i just setvisible to false

[upper drum]

if it take up ram then is there any method to delete an object like Jpanel so i can free up ram

[warm shore]

<@&987246487241105418> please have a look, thanks.

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TJ-Bot

If it take up ram then is there any method to delete an object like Jpanel so i can free up ram

Yes, a JPanel will still take up memory (RAM) even if you set it to invisible. This is because the object still exists in memory even though it is not being displayed on the screen.

To free up the memory used by a JPanel or any other object in Java, you need to make sure that there are no references to that object. Once all references to an object are removed, the Java garbage collector will eventually reclaim the memory used by that object.

One way to remove references to an object is by setting the variable pointing to that object to null. For example, if you have a JPanel called panel, you can set it to null like this:

panel = null;

This tells Java that there are no more references to the JPanel object and it can be garbage collected.

It's important to note that setting an object reference to null does not immediately free up memory - the garbage collector will only reclaim the memory when it determines that the object is no longer needed. Additionally, be careful not to set important objects or variables to null if they are still needed in your program.

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[foggy cape]

are you having memory problems?

an object is only removed from memory if there are no more references to that object

and even then, it wont be cleared from memory right away. itll be cleared once the GC runs

[upper drum]

what that mean?

[foggy cape]

if no variables reference the object

[upper drum]

but it have varriable im using cardlayout

should i just set the variable to null

[foggy cape]

then the object is going to remain in memory, since card layout references it

[foggy cape]

its common for multiple variables to be referencing the same object

[upper drum]

yeah but should i let it be like that my computer only have 2 ram

[foggy cape]

Object o1 = new Object();
Object o2 = o1;

o1 = null;```

o1 no longer references the object, since we changed o1 to reference null/no object

but the object still has references (o2)

[upper drum]

yeah i understand this part

but should i let jpanel stay in my ram or clear it and when i need make a new one

[foggy cape]

thats up to you. you could do that, sure

although seems you are pre-maturely optimizing. that may not save you as much memory as you're thinking

[upper drum]

yeah i know

u know those game with start screen

they often have setting and stuff

so like i dont want the setting panel to take up my ram when i play the game

i wonder how other game dev does this

[foggy cape]

whether they keep their main menu in memory?

its going to differ between devs, and between games