24/7 Pet Web Search

Search results

1. Results From The WOW.Com Content Network

2. What is the Java ?: operator called and what does it do?

   stackoverflow.com/questions/798545

   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". Yes, the phrase "ternary operator" has stuck - my answer is part of an effort to "unstick" it, just as I try to correct the claim that "objects are passed ...

3. How do the post increment (i++) and pre increment (++i) operators...

   stackoverflow.com/questions/2371118

   Now available on Stack Overflow for Teams! AI features where you work: search, IDE, and chat. Learn more Explore Teams

4. What is the difference between == and equals () in Java?

   stackoverflow.com/questions/7520432

   Since java.lang.String class override equals method, It return true if two String object contains same content but == will only return true if two references are pointing to same object. Here is an example of comparing two Strings in Java for equality using == and equals() method which will clear some doubts:

5. java - Using NOT operator in IF conditions - Stack Overflow

   stackoverflow.com/questions/4775379

   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 trying to return early from a function ( a common programming best practice)

6. What does the ^ operator do in Java? - Stack Overflow

   stackoverflow.com/questions/1991380

   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 if necessary). You can also use the traditional bit-shifting trick to compute some powers of two. That is, (1L << k) is two to the k-th power for k=0..63. See also

7. What are the -Xms and -Xmx parameters when starting JVM?

   stackoverflow.com/questions/14763079

   -Xss<size> set java thread stack size -Xprof output cpu profiling data -Xfuture enable strictest checks, anticipating future default -Xrs reduce use of OS signals by Java/VM (see documentation) -Xcheck:jni perform additional checks for JNI functions -Xshare:off do not attempt to use shared class data -Xshare:auto use shared class data if ...

8. What is the percent % operator in java? - Stack Overflow

   stackoverflow.com/questions/43975824

   Now available on Stack Overflow for Teams! AI features where you work: search, IDE, and chat. Learn more Explore Teams

9. in java what does the @ symbol mean? - Stack Overflow

   stackoverflow.com/questions/31822020

   In Java Persistence API you use them to map a Java class with database tables. For example @Table() Used to map the particular Java class to the date base table. @Entity Represents that the class is an entity class. Similarly you can use many annotations to map individual columns, generate ids, generate version, relationships etc.

10. What is the difference between & and && in Java?

    stackoverflow.com/questions/5564410

    In respect of the AND and OR operators, Java has got two types of evaluation namely Short-Circuit evaluation and full evaluation. && || Short-Circuit Evaluation. Short-Circuit evaluation enables you to not evaluate the right-hand side of AND and OR expressions, when the overall result can be predicted from the left-side value.

11. Proper usage of Java -D command-line parameters

    stackoverflow.com/questions/5045608

    You're giving parameters to your program instead to Java. Use. java -Dtest="true" -jar myApplication.jar instead. Consider using "true".equalsIgnoreCase(System.getProperty("test")) to avoid the NPE. But do not use "Yoda conditions" always without thinking, sometimes throwing the NPE is the right behavior and sometimes something like