Display the amount of free memory in the Java Virtual Machine

Java 8 Object Oriented Programming Programming

In order to display the amount of free memory in the Java Virtual Machine, we use the freeMemory() method. It is a method of the java.lang.Runtime Class. It returns the amount of free memory in the Java Virtual Machine. If we call the gc method, there is a possibility of increase of free memory.

Declaration − The java.lang.Runtime.freeMemory() method is declared as follows −

public long freeMemory()

Let us see a program to display the amount of free memory in the Java Virtual Machine −

Example

Live Demo

public class Example {
   public static void main(String[] args) {
      // print statement at the start of the program
      System.out.println("Start...");
      // displays the free memory
      System.out.println("" + Runtime.getRuntime().freeMemory());
   }
}

Output

Start...
15732848

Krantik Chavan

Published on 08-Jan-2019 11:59:13

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