How to increase Heap size of JVM

Question

I am getting the following error   Exception in thread  main  java lang OutOfMemoryError  Java heap space         at SQLite Vm step Native Method          at SQLite Database get table Database java 314          at SQLite JDBC2z JDBCStatement executeQuery JDBCStatement java 120          at SQLite JDBC2z JDBCStatement executeQuery JDBCStatement java 168          at TestData readData TestData java 21          at TestData main TestData java 41

User · Answer

Use -Xms1024m -Xmx1024m to control your heap size  1024m is only for demonstration  the exact number depends your system memory   Setting minimum and maximum heap size to the same is usually a best practice since JVM doesn t have to increase heap size at runtime

User · Answer

-XmxSIZE  For example  -Xmx1024M

User · Answer

Start the program with -Xms  size  -Xmx -XX MaxPermSize  size  -XX MaxNewSize  size   For example -  -Xms512m -Xmx1152m -XX MaxPermSize 256m -XX MaxNewSize 256m

User · Answer

Following are few options available to change Heap Size   -Xms lt size gt         set initial Java heap size -Xmx lt size gt         set maximum Java heap size -Xss lt size gt         set java thread stack size     java -Xmx256m TestData java

User · Answer

Java command line parameters  -Xms  initial heap size -Xmx  Maximum heap size   if you are using Tomcat  Update CATALINA OPTS environment variable  export CATALINA OPTS -Xms16m -Xmx256m

User · Answer

By using the -Xmx command line parameter when you invoke java   See http   download oracle com javase 6 docs technotes tools windows java html

[java] How to increase Heap size of JVM

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