How To Get JVM Start Time And Date

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This example shows how to get the start time and date for the current execution environment of Java Virtual Machine (JVM). RuntimeMXBean in the Java lang package helps in getting the details of the JVM start time. By invoking the method getStartTime() in RuntimeMXBean class, it returns the time in long number which can be […]

How To Set Tomcat JVM Heap Size in Eclipse?

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If JVM head size for Tomcat is not enough, you would get the error java.lang.OutOfMemoryError. If you are using eclipse, it is easy to increase the available heap size by using the server configurations. Look at the below steps to configure the VM arguments passed to JVM for running the tomcat server. 1. Open Server […]

What is the difference between JRE,JVM and JDK?

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If you are a Java developer, it is very often that you think about understanding the JRE,JVM and JDK. Once if you understand these things, it would be quite easy for you to visualize things in logical manner. Also look at the picture below, that will clear all your questions about the JRE,JVM and JDK. […]

JVM,JRE,Java Compiler Interview Questions

JVM,JRE,Java Compiler FAQs-1 1)How can I write a program that takes command line input? A: Java programs that take input from the command line declare a special static method called main, which takes a String array as an argument and returns void. The example program below loops through any arguments passed to the program on […]