9.3 Code Practice Instructions
Write a program that creates a 4 x 5 array called numbers. The elements in your array should all be random numbers between -30 and 30, inclusive. Then, print the array as a grid.

For instance, the 2 x 2 array [[1,2],[3,4]] as a grid could be printed as:

1 2
3 4
Sample Output
18 -18 10 0 -7
-20 0 17 29 -26
14 20 27 4 19
-14 12 -29 25 28
Note: the numbers generated in your program will not match the sample output, as they will be randomly generated.

Which tab should you open to find the option for adding a header?

Create a class named majors that includes an enumeration for the six majors offered by a college as follows: acc, chem, cis, eng, his, phys. display the enumeration values for the user, then prompt the user to enter a major. display the college division in which the major falls. acc and cis are in the business division, chem and phys are in the science division, and eng and his are in the humanities division. save the file as majors. java.

How to launch an app: steps to be successful? launching an app is a great idea, but it’s not that easy as we supposed to think. the majority of mobile applications don’t generate revenue because companies aren’t ready to be competitive. referring to our experience in successfully building and launching apps we hope to you omit these difficulties. we are going to talk about ideas, marketing, testing your product, its development, distribution and support. you will learn 8 product launch stages to succeed.