Java Runtime totalMemory() Method

---

---

Description

The Java Runtime totalMemory() method returns the total amount of memory in the Java virtual machine. The value returned by this method may vary over time, depending on the host environment. Note that the amount of memory required to hold an object of any given type may be implementation-dependent.

Declaration

Following is the declaration for java.lang.Runtime.totalMemory() method

public long totalMemory()

Parameters

NA

Return Value

This method does not return a value.

Exception

NA

Example: Getting Total Memory of current Environment in Bytes

The following example shows the usage of Java Runtime totalMemory() method. We've printed the total memory of the current environment using totalMemory() method.

package com.tutorialspoint;

public class RuntimeDemo {

   public static void main(String[] args) {

      // print the state of the program
      System.out.println("Program is starting...");

      // print the total memory
      System.out.println("" + Runtime.getRuntime().totalMemory());
   }
}

Output

Let us compile and run the above program, this will produce the following result −

Program is starting...
63111168