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Google Interview Question for Software Engineer in Tests


More Questions from This Interview



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0
of 0 vote

delete [] array_name

- Java Coder October 10, 2008 | Flag Reply
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0
of 0 votes

where is the new?

- mal January 29, 2011 | Flag
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0
of 0 vote

This seems to be a trick question.. They might be testing you to see how long does it take you to come to the conclusion that "You don't free memory using new, you use delete!"

- Boink boink October 11, 2008 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 votes

In some OOP based languages like Java (or C#), an array is a reference type object.
So we can free memory allocated to it in the following way -
int[] arrI = new int[20];
// We need to free memory allocated to arrI
arrI = new int[0];

Hope this works for them!

- Rajat Kansal October 31, 2008 | Flag
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0
of 0 votes

what's this.........

- shoushou January 16, 2009 | Flag
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0
of 0 votes

@Rajat - that does not really *free* the mem.
All it does - mark them or tag them for deletion when garbage collector runs.
in .NET it has to be gc.Collect() - not recomended.

I do not think the question was asked properly.

- Lord Darth Plaguies June 26, 2009 | Flag
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0
of 0 vote

it could be that the interviewer wants to know if you can free the memory 'from within another function' (guessing new function means that)
basically ownership of the memory created and how its managed.

- hgk August 21, 2009 | Flag Reply
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0
of 0 vote

Deleting using new can be done via Placement new.
i.e.
you need to free a mem location: 0xCAFEBABE

Fred* f = new(0xCAFEBABE) Fred();

- Abhijith June 04, 2010 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 votes

does not seem related to the question

cplusplusDOTcom/reference/std/new/operator%20new[]

- mal January 29, 2011 | Flag
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0
of 0 vote

In Java may be this will work, correct me.

int[] arr = null; and then call System.gc();

- Badal November 04, 2012 | Flag Reply


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