What are the -Xms and -Xmx parameters when starting JVM?
Jun 11, 2024 · The flag Xmx specifies the maximum memory allocation pool for a Java Virtual Machine (JVM), while Xms specifies the initial memory allocation pool. This means that your …
How do the post increment (i++) and pre increment (++i) …
How do the post increment (i++) and pre increment (++i) operators work in Java? Asked 15 years, 9 months ago Modified 1 year, 6 months ago Viewed 448k times
What does the ^ operator do in Java? - Stack Overflow
Jan 2, 2010 · 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 does the arrow operator, '->', do in Java? - Stack Overflow
While hunting through some code I came across the arrow operator, what exactly does it do? I thought Java did not have an arrow operator. return (Collection<Car>) …
java - Setting active profile and config location from command …
Jun 25, 2015 · spring: profiles.active: development The other 3 profile specific config files are present in C:\config folder. I am using gradle plugin for eclipse. When I try to do a " bootRun ", …
What is the Java ?: operator called and what does it do?
Not only in Java, this syntax is available within PHP, Objective-C too. In the following link it gives the following explanation, which is quiet good to understand it: A ternary operator is some …
Setting JAVA_HOME environment variable in MS Windows
JAVA_HOME and PATH are different, I didn't say point JAVA_HOME to the jre/bin directory. Try making sure that the PATH environment variable includes the jre/bin directory. For example, …
What is the difference between == and equals () in Java?
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:
java - How do I find where JDK is installed on my windows …
Jan 13, 2011 · I need to know where JDK is located on my machine. On running Java -version in cmd, it shows the version as '1.6.xx'. To find the location of this SDK on my machine I tried …
java - What is the difference between JDK and JRE? - Stack Overflow
Dec 15, 2009 · 1440 The JRE is the Java Runtime Environment. It is a package of everything necessary to run a compiled Java program, including the Java Virtual Machine (JVM), the …