What is the parameter in the main() method, String[] args, for? Where are the values of the argument from?

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Answer some or all of the questions listed below:
1) What are conditions to using a loop to search a target value in an array?

2) If you declare a 2-D array, named arr, what are arr.length and arr[0].length?

3) What are differences between an array and an object of the ArrayList class?

4) What is the difference between an ArrayList object’s size and its capacity?

5) Can you use the operator == to compare two array or ArrayList objects to check whether they hold the same contents? Why?

6) What is the parameter in the main() method, String[] args, for? Where are the values of the argument from?

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