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Get Maximum Memory Available to Java Virtual Machine(JVM) Example

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  1. /*
  2.         Get Maximum Memory Available to Java Virtual Machine(JVM) Example
  3.         This Java example shows how to get maximum amount memory
  4.         Java Virtual Machine will attempt to use using maxMemory()
  5.         method of Runtime class.
  6. */
  7.  
  8. public class GetMaxMemory {
  9.  
  10.         public static void main(String args[])
  11.         {
  12.                 /*
  13.                  * get current Java Runtime using getRuntime()
  14.                  * method of Runtime class.
  15.                  */
  16.                 Runtime runtime = Runtime.getRuntime();
  17.                
  18.                 /*
  19.                  * To determine amount of maximum memory Java Virtual
  20.                  * Machine (JVM) will attempt to use, use
  21.                  *
  22.                  * long maxMemory()
  23.                  * method of Runtime class.
  24.                  *
  25.                  * If there is no limit inherited, value of Long.MAX_VALUE
  26.                  * will be returned.
  27.                  */
  28.                  
  29.                  long maxMemory = runtime.maxMemory();
  30.                  
  31.                  System.out.println(maxMemory + " bytes max");
  32.         }
  33.        
  34.        
  35. }
  36.  
  37. /*
  38. Typical output would be
  39. 66650112 bytes max
  40. */