Java programming Write a method that takes an array of integers as a parameter. The method should return the occurrence of the even numbers in the passed array

IN C++   Write a method that lets you insert a number anywhere in an array that is already full. For instance, if you have an array of size 5: 3,6,1,2,0. You should be able to insert the number 9 in some desired/specified position. E.g 3,6,1,9,2,0.

1. Square Roots Create a class with a method that, given an integer, returns an array of double-precision floating point numbers (known in Java as double), each of which is a square root of a number between 2 and the parameter to the method. For example, if the parameter is 5, the method should return an array of 4 doubles, with approximate values 1.4142135623, 1.7320508075, 2.0, and 2.2360679774. Your method should check the validity of the parameter, and take appropriate action if the parameter is invalid. 2. Reading Files Create a class with a method that, given a string representing a file name, returns an integer with the number of characters in the file. For example, if the file has 10 characters, your method must return the number 10. 3. Main Class Create a class HW1.java with a main method that does both of the following: calls the method from part 1 with a random integer between 0 and 10, and prints each of the numbers in the result. The numbers should all be printed on the…

This is need in Java   Declare an array named temperatures that can hold 10 doubles.