
What is the Java ?: operator called and what does it do?
In particular, if Java ever gets another ternary operator, people who use the term "conditional operator" will still be correct and unambiguous - unlike those who just say "ternary operator". …
What does the ^ operator do in Java? - Stack Overflow
Jan 2, 2010 · Exponentiation in Java. As for integer exponentiation, unfortunately Java does not have such an operator. You can use double Math.pow(double, double) (casting the result to int …
java - && (AND) and || (OR) in IF statements - Stack Overflow
Because of this, aside from the null-check-first pattern mentioned, you can use this as a general optimization rule: In a compound IF or OR statement, ALWAYS put the most trivial evaluation …
How do I run a Java program from the command line on Windows?
Apr 22, 2013 · I'm trying to execute a Java program from the command line in Windows. Here is my code: import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; …
java - When should I use "this" in a class? - Stack Overflow
Mar 10, 2010 · @William Brendel answer provided three different use cases in nice way. Use case 1: Offical java documentation page on this provides same use-cases. Within an instance …
java - When should I use the dollar symbol ($) in a variable name ...
Aug 10, 2021 · In Java, I use the "_" as a prefix to a private class-wide non-static variable or fields and "$" as a prefix to a private class-wide static variable. It's better than using the "m" prefix …
java - What is a Question Mark "?" and Colon - Stack Overflow
Apr 26, 2012 · The Java jargon uses the expression method, not functions - in other contexts there is the distinction of function and procedure, dependent on the existence of a return type, …
How can I use pointers in Java? - Stack Overflow
Nov 17, 2009 · As Java has no pointer data types, it is impossible to use pointers in Java. Even the few experts will not be able to use pointers in java. See also the last point in: The Java …
boolean operations - How to use 'or' in Java? - Stack Overflow
The || operator can only be used, in Java, where a boolean (true or false) expression is expected, such as in an if statement like the above. So pretty much in an if or a conditional operator (that …
java - Using NOT operator in IF conditions - Stack Overflow
Feb 19, 2020 · Java 11 added isEmpty, but before that there was only isPresent. Image you are trying to return early from a function ( a common programming best practice) Image you are …