these are java programming.... IT'S urgent.. write and run the code. （A)The grades of three students in Advanced Mathema

[answerhappygod]

these are java programming.... IT'S urgent.. write and run the code.
（A)The grades of three students in Advanced Mathematics, Assembly Language and Java Programming are known, and the average score of each student is calculated and output to the screen.
（B） There is a string array composed of English words:string s []

={"we","will","word","what","and","two","out","I","hope","you","can",

"me","please","accept","my","best"}; Write program to realize:

1) Count the number of words beginning with the letter w;

2) Count the number of words with "or" string in the word;
3) Count the number of words with length of 3.