What are the differences between System.gc() and Runtime.gc()?
There is no difference between these two methods.
Both methods suggest that the Java Virtual Machine expend effort toward recycling unused objects in order to make the memory they currently occupy available for quick reuse. When control returns from the method call, the Java Virtual Machine has made a best effort to reclaim space from all discarded objects.
The System.gc() is a static method so it's a little bit more convenient to use. The call System.gc() is effectively equivalent to the call:
Runtime.getRuntime().gc()
 |
 |
 |
 |
Most Recent java Faqs
- How to uncompress a file in the gzip format?
- How to make a gzip file in Java?
- How to use Java String.split method to split a string by dot?
- How to validate URL in Java?
- How to schedule a job in Java?
- How to return the content in the correct encoding from a servlet?
- What is the difference between JDK and JRE?
Most Viewed java Faqs
- How to read input from console (keyboard) in Java?
- How to use HttpURLConnection POST data to web server?
- How to add BASIC Authentication into HttpURLConnection?
- How to Retrieve Multiple Result Sets from a Stored Procedure in JDBC?
- What are class variables in Java?
- What are local variables in Java?
- How to Use Updatable ResultSet in JDBC?