Check for Available Memory Programmatically

Check for Available Memory Programmatically

If an application’s behavior is dependent on the amount of available memory, then this code fragment can be used to determine what action an application should take. For example, a text editor may not allow any more files to be opened, when the amount of free memory falls to a tenth of the total available memory.
The code also warns when available memory falls below a certain level, and attempts to free up memory.

 public class MemTester{static long totalMemory;static long freeMemory;public static void main(String[] args) {    Runtime runtime = Runtime.getRuntime();    totalMemory = runtime.totalMemory();    freeMemory = runtime.freeMemory();    if (freeMemory 


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