What does the ^ operator do in Java? - Stack Overflow
2010年1月2日 · 7 It is the Bitwise xor operator in java which results 1 for different value of bit (ie 1 ^ 0 = 1) and 0 for same value of bit (ie 0 ^ 0 = 0) when a number is written in binary form. ex :- …
What is the Java ?: operator called and what does it do?
It's a ternary operator (in that it has three operands) and it happens to be the only ternary operator in Java at the moment. However, the spec is pretty clear that its name is the conditional …
What are the -Xms and -Xmx parameters when starting JVM?
2013年2月7日 · From Oracle's documentation: Note that the JVM uses more memory than just the heap. For example Java methods, thread stacks and native handles are allocated in memory …
What is the percent % operator in java? - Stack Overflow
2017年5月15日 · What is the percent % operator in java? Asked 8 years, 4 months ago Modified 4 years, 2 months ago Viewed 64k times
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 …
What is the difference between == and equals () in Java?
0 In Java, == and the equals method are used for different purposes when comparing objects. Here's a brief explanation of the difference between them along with examples: == Operator: …
java - How to configure port for a Spring Boot application - Stack …
How do I configure the TCP/IP port listened on by a Spring Boot application, so it does not use the default port of 8080.
Java Versions and Compatibility - Stack Overflow
2023年4月10日 · Java 20 was fully ready for production use. (Java 20 no longer receives updates a few months after the successive version 21 ships.) You said: What is the JDK to Java SE …
java - What is a classpath and how do I set it? - Stack Overflow
2010年3月7日 · I was just reading this line: The first thing the format() method does is load a Velocity template from the classpath named output.vm Please explain what was meant by …
java - Extracting .jar file with command line - Stack Overflow
2011年12月10日 · Java has a class specifically for zip files and one even more specifically for Jar Files. java.util.jar.JarOutputStream java.util.jar.JarInputStream using those you could, on a …