Find Free Memory Available In Java virtual machine

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In this core java tutorial we will Find Free Memory Available In JVM (Java virtual machine) In your System in java.

About freeMemory() method of java.lang.Runtime class in java >
  • freeMemory() method of Runtime class returns the total amount of free memory in the JVM (Java virtual machine).
  • freeMemory() is the native method in java.


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Example/program to Find Free Memory Available In JVM (Java virtual machine) In your System >
/**
* Example/program to Find Free Memory Available In
* JVM (Java virtual machine) In your System
*/
public class FreeMemoryAvailableInJavaVirtualMachineExample{
   public static void main(String[] args) {
         
     /**
     * first we will get the java Runtime object using the
     * Runtime class's getRuntime() method in java.
     */
       Runtime runtime = Runtime.getRuntime();
     
     /**
     * freeMemory() method of Runtime class returns the total
     * amount of free memory in the JVM (Java virtual machine).
     *
     * freeMemory() is the native method.
     *
     * Calling gc (garabage collector) may result in
     * increasing free memory in java.
     */
    
       long freeMemoryAvailableInJVM = runtime.freeMemory();
      
       System.out.println("Total amount of free memory available in the "
             + "JVM (Java virtual machine) in bytes = "+ freeMemoryAvailableInJVM);
   }
}
/* output
Total amount of free memory available in the JVM (Java virtual machine) in bytes = 253398664
*/



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SUMMARY >
So in this core java tutorial we got the Free Memory Available In JVM (Java virtual machine) In your System in java.


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