Alya'a Gamal questions

Alya'a Gamal answers

• Difference between creating an instance variable and creating a new object in Java?
• java beginner calculator not compiling
• video is not being written to file
• Grails - How can I calculate execution time spent on any action?
• Roman Numeral to Number Conversion [duplicate]
• To count number of 1's,0's,2's in a string in java
• How to get the (n) index of character inside String?
• Com object in Java , possible?
• How do I center a JTextfield
• Enable text highlighting in swing message-box