Java Exception: "java.lang.OutOfMemoryError: Java heap space"
This section provides a tutorial example on how JVM expands the Heap space to allocate more objects and leads to the 'java.lang.OutOfMemoryError: Java heap space' Java exception, if it is not allowed to expand any more. 2017-08-10, 226👍, 1💬
Current Time in Milliseconds and Nanoseconds
This section provides a tutorial example on how to obtain the current time in milliseconds and nanoseconds using currentTimeMillis() and nanoTime() methods. 2017-08-09, 140👍, 1💬
Accessing System Environment Variables
This section provides a tutorial example on how to access environment variables defined in the operating system using the System.getenv() method. 2017-01-14, 236👍, 2💬
Downloading and Installing JDK 1.7.0 on Windows
This section provides a tutorial example on how to download and install JDK 1.7.0 (Java SE 7) on a Windows XP system. A simple Java program was entered, compiled, and executed with the new JDK installation. 2017-01-02, 4613👍, 3💬
PC Register and Native Method Stack
This section describes PC Registers and Native Method Stacks, which are reserved one per thread. Normal Java applications do not have any significant impact on PC Registers and Native Method Stacks. 2016-05-13, 1172👍, 2💬
Sun's JVM - Java HotSpot VM
This chapter provides tutorial notes and example codes on Sun Java HotSpot VM. Topics include running Java HotSpot VM in client and server modes; checking memory usage with the Runtime class. 2016-01-26, 464👍, 1💬
Garbage Collection Tests
This chapter provides tutorial notes and example codes on garbage collection. Topics include garbage collection test program - GCTest2.java; comparisons between HotSpot 1.7.0, HotSpot 1.6.0 and JRockit R28.2.7. 2015-08-16, 196👍, 1💬
Table of Contents - Index
This free book is a collection of notes and sample codes written by the author while he was learning JVM himself. Topics include JVM (Java Virtual Machine), HotSpot, JRockit, GC (Garbage Collection), Memory, Stack overflow, CDS (Class Data Sharing), Runtime, Reflection. 2015-07-18, 239👍, 0💬
This section provides a tutorial example on how to write a sample program to create a SSL client soc...
This section provides a list of supported character encodings supported in Java. The list is generat...
This section describes how to download and install Java SE Development Kit (JDK) 8u45 on a Windows s...
This section describes how to delete rows from target tables through ResultSet objects.
This web site provides a collection of about 40 free tutorial books on programming languages, Web ap...