rookie questions

• Why should I check the return value of operator NEW?
• handling exceptions in ML
• Algorithm for the special case of rank tree
• Get a button from a gridLayout
• null pointer in C++
• how can I create executable file for the program written on Java?
• Change background color of python shell
• Floyd's cycle-finding algorithm
• catching exceptions in ML
• Which of these options is good practice for assigning a string value to a variable in C?

rookie answers