Write a JAVA program to prompt the user to enter a non-negative integer value and print "Yes" in the output if the number is a perfect square, otherwise print "No" in the output.

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 Java program that: Ask user to enter the last two digits of the Student ID number and store it in a variable of type integer; Use a while loop to print all the positive odd numbers smaller than the inputted number. After the while loop, make a for loop to print all the positive even numbers smaller than the inputted Note: Your answer should have the code as text, as well as a screenshot of the code with the output.  The inputted number should be the last two digits of your Student ID number.  ID is : 190058401

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…