John C.

What's a method that will take an int array list and will take every even number in the list and insert the same number to the right of the initial number. e.g.: [1,2,3,4] would become... more

 Create a simple Java GUI application that will simulate the calculator. Numbers from 0-9 should be present and should perform a basic arithmetic operation such as Addition, Subtraction,... more

options 1) 2m/s²2) 15m/s²3) 50m/s²4) 0.5m/s²

1 net force is positive in the direction of motion2 net force is zero3 net force is positive against the direction of motion4 not enough information to solve

Find the average value of f(x)=e2x over the interval [2, 4].1463.18731.59 1517.78 23.60

How do I print coloured characters to a Linux terminal that supports it? How do I tell whether the terminal supports colour codes?

Why are pointers such a leading factor of confusion for many new, and even old, college level students in C or C++? Are there any tools or thought processes that helped you understand how pointers... more

I have a variable of type `std::string`. I want to check if it contains a certain `std::string`. How would I do that? Is there a function that returns true if the string is found, and false if it... more

Why does the C++ STL not provide any "tree" containers, and what's the best thing to use instead? I want to store a hierarchy of objects as a tree, rather than use a tree as a performance... more

Is it safe to delete a NULL pointer? And is it a good coding style?

What is the meaning of `const` in declarations like these? The `const` confuses me. class foobar { public: operator int () const; const char* foo() const; };

What is a segmentation fault? Is it different in C and C++? How are segmentation faults and dangling pointers related?