When should I use singleton pattern?
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Does substring create a new object?
what is auto boxing
what is AWT
What is a flag value?
why the wait,notify,notifyall methods are placed in object class?these are the thread concepts why these methods are placed in Object class?
2 Answers Global Logic, Satyam,
How do you declare an empty string?
What about interrupt() method of thread class ?
Every class extends object but why it is not possible for every object to invoke clone() method. ideally protected methods should be accessible from sub classes. isn't it?
Can we force the garbage collection to run?
Can you inherit from an abstract class java?
Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example
What is the difference between path and classpath variables?