Determine allocated memory from within the Java app

[Kees de Kooter]

I want to display some basic memory info (like the heap size in the eclipse status bar).

Which api should I use?

[kjkoster]

Dear Kees,

What will you use it for?

Most likely you will either end up using java.lang.Runtime if the code needs to be portable to Java 1.4 and older. If you use Java 1.5 and up use JMX. Here is an explanation of Java's memory pools (http://www.kjkoster.org/zapcat/Zabbix_Java_Template.html) and what to look for using JMX.

Kees Jan

[Kees de Kooter]

Thanks Kees Jan.

I want to put some "impressive numbers" on a sysinfo page, monitoring is not an immediate requirement. java.lang.Runtime will do for now.