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How can we reference an unreferenced object again?

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Pragya Keshap answered on February 4, 2023 Popularity 2/10 Helpfulness 1/10

answer How can we reference an unreferenced object again?

How can we reference an unreferenced object again?

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We can provide implementation in finalize() method to reference

and unreferenced object. For an unreferenced object, finalize()

method is called at the time of Garbage Collection. At this time,

Object can pass its reference ‘this’ to finalize() method and revive

itself.

public class TestObject {
public String name;
public TestObject(){
this("Ranjan");
}
public TestObject(String name){
this.name = name;
System.out.println("TestObject : " + this);
}
@Override
protected void finalize() throws Throwable {
super.finalize();
System.out.println("finalize : TestObject : " + this);
Test.main = this;
}
}

public class Test {
public static TestObject main;
public static void main(String[] args) {
System.out.println(new TestObject());
System.gc();
System.runFinalization();
System.gc();
System.out.println(main);
}
}

https://www.javatpoint.com/q/4664/can-the-unreferenced-objects-be-referenced-again?#:~:text=Yes%20it%20is%20possible%20we,this%20keyword%20in%20finalize%20method.&text=The%20finalize()%20method%20is,do%20operations%20on%20the%20instance.

Popularity 2/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java object reference

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Contributed on Feb 04 2023

Pragya Keshap

0 Answers Avg Quality 2/10

How can we reference an unreferenced object again?

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