how to get the default maximum heap size for Sun's JVM from Java SE 6 or 7

unix:

31 down vote accepted

java 1.6.0_21 or later, or so... $ java -XX:+PrintFlagsFinal -version 2>&1 | grep MaxHeapSizeuintx MaxHeapSize := 12660904960 {product}

 

windows

cd d:

java -version

java -XX:+PrintFlagsFinal -version  >a.log

 

 

is you use default jvm,-client

java -client -XX:+PrintFlagsFinal -version >a.log