Write a Java program that keeps a number from the user and generates an integer between 1 and 7 and displays the name of the weekday.

1. Write Java code to repeatedly print each single digit between 1 and 9 the number of times based upon its numeric value. Thus, you would get a triangle of the shape below where 1 prints once, 2 twice . and 9 prints 9 times. 1 22 333 4444 55555 666666 7777777 88888888 999999999

Create a Java program that can be used to calculate the average weekly and monthly grocery bill for a family of four: Prompt the user for the coupon amount as a decimal (example, .10). Ensure the value is set to 10% if the value exceeds 100% or is less than or equal to zero. Prompt the user for 2-4 weeks of grocery bills. Calculate the monthly and weekly average for groceries. Display monthly total and weekly average without the coupon. Display monthly total and weekly average with the coupon.

Write a program (use value returning method) that gives simple math quizzes. The program should display two random integers from 1 to 100 that are to be added,The program allows the user to enter the answer. If the answer is correct, display “congratulations”. If the answer is incorrect, the program should show the correct answer. using java programming