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Java System class runFinalization() method with example

System class runFinalization() method: Here, we are going to learn about the runFinalization() method of System class with its syntax and example.
Submitted by Preeti Jain, on September 15, 2019

System class runFinalization() method

• runFinalization() method is available in java.lang package.
• runFinalization() method is used to run the finalize() methods of any object that are already in a queue for disposing of unused objects.
• runFinalization() method is a static method, it is accessible with the class name too.
• runFinalization() method method does not throw any exception.

Syntax:

    public static void runFinalization();

Parameter(s):

• It does not accept any parameter.

Return value:

The return type of this method is void, it does not return anything.

Example:

// Java program to demonstrate the example of 
// runFinalization () method of System Class

public class RunFinalizationMethod {
    public static void main(String[] args) {
        // print the state of the program
        int i = 10;

        System.out.println("The value of i is :" + i);

        // Here, we are calling the runFinalization() method 
        // that will  call finalize() methods 
        // for disposing unused objects
        Runtime.getRuntime().runFinalization();
        System.out.println("Finalization Done.");
    }
}

Output

E:\Programs>javac RunFinalizationMethod.java
E:\Programs>java RunFinalizationMethod
The value of i is :10
Finalization Done.