Hello, I need someone who can help me with this study guide about Java language by explaining, answering, and giving examples:

Be able to:Write java methods to perform some sort of processing like displaying output, performing arithmetic,etc.

Properly declare variables and constants.Given the following method signatures, write the method call statement. Include any variabledefinitions that are required:

a. private static double[] createAra(int parmA)

b. private static boolean hasComma(String that)

Determine what a method signature would be for a given call - a.System.out.println(myMethod());

CSCD 210

b.String s = a phrase; int x = getLength(s);c.double pi = 3.14159;float radius = 42;double area = getArea(radius, pi);

Declare a scanner object for the keyboard and assign its value to kb

Determine the output String s = "Hello!"; for (int i = 0; i < s.length(); i++) { System.out.println(s.charAt(i));

i++;}

String s = "Hello!"; for (int i = s.length() - 1; i >= 0; i--) { System.out.println(s.charAt(i)); } System.out.println(s);