Need to perform both Queue and stack operations in Visual C# code

Need to perform both Queue and stack operations, is any Data Structure available for this. or how can i custom create the structure for this?

Hi,
In this structure contains base logics of Queue and Stack. Well stack plays major role here with operations of PUSH, POP with additional operation of Queue i.e., ENQUEUE and DEQUEUE. Here the stack has enqueue and dequeue
https://code.msdn.microsoft.com/The-Stacked-Queues-An-11f3703a
Regards,
Selva Ganapathy K

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Need help with errors (Queue and Stack)

can someone please help. I am getting these errors and i do not know what's wrong or how to fix them. A snippet from the program is below following is the errors I am getting. Please help. :(
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private Stack opStack;
private Queue postfix;
private StringTokenizer str;
private String curValue;
public void Parser(String s)
opStack = new StackAr();
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class QueueAr implements Queue
^
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class QueueAr implements Queue
^
test.java:12: Class Queue not found in type declaration.
private Queue postfix;
^
test.java:18: Class StackAr not found in type declaration.
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test.java:24: Variable DEF_SIZE can't be static in
inner class test. QueueAr. Only members of interfaces
and top-level classes can be static.
class QueueAr implements Queue
^You can't have static members in an inner class. Either Move DEF_SIZE to the outer class, or don't make it static. :-)
test.java:24: Interface Queue of inner class test.
QueueAr not found.
class QueueAr implements Queue
^
test.java:12: Class Queue not found in type
declaration.
private Queue postfix;
^You need to import the Queue class, whatever that is.
test.java:18: Class StackAr not found in type
declaration.
opStack = new StackAr();^
You need to import the StackAr class, whatever that is.

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http://visionindustrielle.ch
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Need to perform both Queue and stack operations in Visual C# code

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