How do the two different ( overloaded ) versions of theString class\'s substring

Question

• How do the two different (overloaded) versions of theString class's substring() method work? Write a fragmentof code that shows each being used (specify the original string andwhat the substring result of a given call would be). Hint: use theJava class documentation.
• How should you check for two strings being equal rather thanusing the "==" comparison? (an oldie butgoodie
• Say you wanted to use the built-in library class "Socket" thatcomes with Java. Write the "import" command you would need to makethat class available for your use (hint: look in the classdocumentation).
• Briefly, what is a Java "map"?
• Locate and give an example of a JavaDoc comment that includesat least one "@param" value and one "@return" value.
• Is "loose coupling" or "strong coupling" more desirable inprogramming? Briefly explain why.

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