Getting the Size of the Java Memory Heap : Runtime « Development Class « Java






  1. Java
  2. Development Class
  3. Runtime

Getting the Size of the Java Memory Heap

     

public class Main {
  public static void main(String[] argv) throws Exception {
    long heapSize = Runtime.getRuntime().totalMemory();

    long heapMaxSize = Runtime.getRuntime().maxMemory();

    long heapFreeSize = Runtime.getRuntime().freeMemory();

  }
}








Related examples in the same category

1.Runtime.getRuntime().exec
2.Get Number of Available Processors
3.Execute system command
4.Determine when the application is about to exit
5.Read all information that the child process sends to its standard output stream
6.Execute a command from code
7.Execute a command with more than one argument
8.Launch a Unix script with Java
9.Read output from a Command execution
10.Send an Input to a Command
11.From Runtime.exec() to ProcessBuilder
12.Get current size of heap in bytes
13.Get maximum size of heap in bytes.
14.Get amount of free memory within the heap in bytes.
15.Minimize all programs on Windows to show the Desktop
16.Command and its arguments supplied in an array
17.Execute a command with an argument that contains a space
18.Execute a command with an argument that contains a space: use array
19.Calculate process elapsed time
20.Registering Shutdown Hooks for Virtual Machine
21.Get memory information
22.Returns a description of the JVM.
23.Returns a description of the operating system and processor configuration.
24.Returns a report of used and available memory.
25.Ensure that there is only one instance
26.Returns used(max) memory in MB