Question

Memory Demo Program in Java

no copied answers please​

Answer 1

The C0DE -

class MemoryDemo

{

   public static void main(String arg[])

   {

       Runtime gfg = Runtime.getRuntime();

       long memory1, memory2;

       Integer integer[] = new Integer[1000];

       // checking the total memory

       System.out.println("Total memory is: "

                        + gfg.totalMemory());

       // checking free memory

       memory1 = gfg.freeMemory();

       System.out.println("Initial free memory: "

                                     + memory1);

       // calling the garbage collector on demand

       gfg.gc();

       memory1 = gfg.freeMemory();

       System.out.println("Free memory after garbage "

                          + "collection: " + memory1);

     // allocating integers

       for (int i = 0; i < 1000; i++)

           integer[i] = new Integer(i);  

       memory2 = gfg.freeMemory();

       System.out.println("Free memory after allocation: "

                          + memory2);

       System.out.println("Memory used by allocation: " +

                                   (memory1 - memory2));

     // discard integers

       for (int i = 0; i < 1000; i++)

         integer[i] = null;

          gfg.gc();

       memory2 = gfg.freeMemory();

       System.out.println("Free memory after  "

           + "collecting discarded Integers: " + memory2);

   }

}

0UTPUT

Run the program to get the output.  If any doubt just dm me.