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- What is the percent % operator in java? - Stack Overflow
After 30 years, Java is still brewing up new features Learn like a lurker: Gen Z’s digital-first lifestyle and the future of knowledge Featured on Meta
- 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" 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
- How do the post increment (i++) and pre increment (++i) operators work . . .
Can you explain to me the output of this Java code? int a=5,i; i=++a + ++a + a++; i=a++ + ++a + ++a; a=++a + ++a + a++; System out println(a); System out println(i
- What does the ^ operator do in Java? - Stack Overflow
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
- Proper usage of Java -D command-line parameters
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
- java - (AND) and || (OR) in IF statements - Stack Overflow
All the answers here are great but, just to illustrate where this comes from, for questions like this it's good to go to the source: the Java Language Specification Section 15:23, Conditional-And operator ( ) , says:
- java - SSL and cert keystore - Stack Overflow
again, yes Java JDK tools can work with SSL self signed certs It also works in Windows 11 just use Oracle's JDK kit path C:\Program Files\Java\jdk-20\lib\security\cacerts tool path C:\Program Files\Java\jdk-20\bin\keytool I just drop the cert I need into the folder named security and run similar commands as the imac just different paths
- java - Setting active profile and config location from command line in . . .
Option 1: Java System Properties (VM Arguments) It's important that the -D parameters are before your application jar otherwise they are not recognized java -jar -Dspring profiles active=prod application jar Option 2: Program arguments java -jar application jar --spring profiles active=prod --spring config location=c:\config
- java - What is a classpath and how do I set it? - Stack Overflow
The Java launcher, java, initiates the Java virtual machine The virtual machine searches for and loads classes in this order: Bootstrap classes - Classes that comprise the Java platform, including the classes in rt jar and several other important jar files Extension classes - Classes that use the Java Extension mechanism
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