c) Write a Java program to print the string shown below using the string "Java" only. "JavaJavaJavaJava"

(PLEASE USE BASIC  JAVA NOT COMPLEX I AM A BEGINNER THANKS) Canadian phone number has the following format: +1 (604) 295- 8959 Area Code= Three digits starting with 2-9Prefix= Three digits starting with 2-9Subscriber= Any four digits 0-9Write a java program, using loops, that asks the user to enter a phone number then if correct print theArea Code, Prefix, and Subscriber numbers. If not correct, print what is wrong. Sample run:Enter a number or -99 to quit: +1 (604) 277-9999The number is correct with area code: 604, prefix 277, and subscriber 9999Enter a number or -99 to quit: 1 (104) 277-0123Country code doesn’t start with + and area code doesn’t start with a 2-9 number.

Write Java statements to do the following (Make sure to number your answers): Define a constant PI initialized to 3.14159265 and a constant e initialized to 2.718282.Define the variables n as an integer, and factorial as a double.Assign the value 25 to the variable n.Include a comment "Stirling's formula".Write an assignment statement using the Stirling's formula provided below to calculate and assign the result to the variable factorial.??2??√?? 6. Display the result with three decimal places on the console.

Instructions from your teacher: Write a program that asks the user to enter a character. Then pass the character to the following methods.   changeCase() – if the character is lower case then change it to upper case and if the character is in upper case then change it to lower case.   Example output is given below: Enter a character  a a is equivalent to A   Note: Java represents character using Unicode encoding and ‘A’ to ‘Z’ is represented by numbers 65 to 90 and ‘a’ to ‘z’ is represented by numbers 97 to 122. So to convert ‘A’ to ‘a’ you need to add (97-65) to A and then cast it to Character type since the addition will change its type to integer. You can use the following code to read a character from console. When you call charAt(i) method for any String it returns the character at index i. The index of first character is 0, the index of second character is 1 and so on. Scanner input = new Scanner(System.in); char ch =input.next().charAt(0);   If you…

d)Write a Java program to print the string shown below using the string "Java" only. "JavaavaJ"