I'm a beginner in JAVA. Just learned If else statement, loop, and nested loop in JAVA. Using those three write codes for...

Problem 1: Ask the user to enter a width (integer between 1 and 50). Using that entered value: Print a line of "width" asterisks (*). That is, if the user enters 3, print 3 asterisks on one line:***

Problem 2: Print a square box of *s with the given width (and height). That is, if the user enters 3, print: *** *** ***

Problem 3: Print a box with a hole in its center. That is, print a box as in #2 but with the single * in the center (or a *close to the center for boxes with an even width) replaced with a space. For example, if the user inputs 5, print: ***** ***** ** ** ***** *****

Write codes between curly brackets after pulic static void problem#.

For example: public static void problem2() { //write codes here }