Now when I do s1==s2 the result is true. That's fine as I expected as they are pointing to the same literals.
But if I do s1==s3 the result is false. Why? I tought that for string class if you have String s1=""; and using String s = new String(""); are same its just which style you prefer. But now I think they are different.
Can someone please tell me what is going on here.
As I read, String pool is not garbage collected. So I thought maybe I can make my system to run out of memory. So I wrote a small program which keeps generating distinct string at run time. So as I think all these strings must be stored in the pool and never get garbage collect. But my system never went out of memory. I am running this program for more than two hours now. Why is that? Is the pool garbage collected?
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For customizing the look of your lightweight component and making it look lucid like it was made of glass.
Or: how to make your component more Apple-ish ;)
This tip assumes your component to be of rectangular shape and completely opaque.
An old method to applying the Singleton pattern in your Java code is to check if a static instance, defined in the same class that needs to be instantiated once and only once, is null and then create a new instance; otherwise, the pre-existing insta…
Viewers will learn how to properly install Eclipse with the necessary JDK, and will take a look at an introductory Java program.
Download Eclipse installation zip file:
Extract files from zip file:
Download and install JDK 8:
Open Eclipse and …