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How is OAuth 2 different from OAuth 1?
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The previous explanations are all overly detailed and complicated IMO. Put simply, OAuth 2 dele...
Why is String.chars() a stream of ints in Java 8?
In Java 8, there is a new method String.chars() which returns a stream of int s ( IntStream ) that represent the character codes. I guess many people would expect a stream of char s here instead. What was the motivation to design the API this way?
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Java Immutable Collections
From Java 1.6 Collection Framework documentation :
6 Answers
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How do you find all subclasses of a given class in Java?
... subclasses of a given class (or all implementors of a given interface) in Java?
As of now, I have a method to do this, but I find it quite inefficient (to say the least).
The method is:
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How to suppress Java warnings for specific directories or files such as generated code
...It is configurable through a project's build path: Project properties > Java Build Path > Compiler > Source
Announced here: Eclipse 3.8 and 4.2 M6 - New and Noteworthy, called Selectively ignore errors/warnings from source folders. That's also where the screenshot is from. This is the ne...
How to make ThreadPoolExecutor's submit() method block if it is saturated?
...nHandler for that or is there an existing way to do this using a standard Java library?
17 Answers
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Returning null as an int permitted with ternary operator but not if statement
Let's look at the simple Java code in the following snippet:
8 Answers
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How to convert an int array to String with toString method in Java [duplicate]
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What you want is the Arrays.toString(int[]) method:
import java.util.Arrays;
int[] array = new int[lnr.getLineNumber() + 1];
int i = 0;
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System.out.println(Arrays.toString(array));
There is a static Arrays.toString helper method for every different primitive java type; th...
Add leading zeroes to number in Java? [duplicate]
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String.format (https://docs.oracle.com/javase/1.5.0/docs/api/java/util/Formatter.html#syntax)
In your case it will be:
String formatted = String.format("%03d", num);
0 - to pad with zeros
3 - to set width to 3
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How to get an enum value from a string value in Java?
...reated at compile time and do not appear in source code. They do appear in Javadoc, though; for example, Dialog.ModalityType shows both methods.
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