BlueJ Questions

Question

If you could write it in the format of BlueJ(Java). That would be great but if not that's ok

1) Write programs with for loops that compute

a. The sum of all even numbers between 2 and 100 (inclusive).

b. The sum of the squares of the numbers between 1 and 100 (inclusive). 1² + 2² + 3² + ...100²

2) Write programs with while loops that read a sequence of integer inputs and print:

a. The smallest and largest of the inputs.

b. The number of even and odd inputs.

1. Hint: users may enter as many numbers as they want, so you need to give them the option to end their input by entering q or something.
2. Please don't print until you reach the end.

3)  Write a program that reads a line of input as a string and prints the number of vowels in the string.

4) Write a program that reads a word and prints each character of the word on a separate

line. For example, if the user provides the input "Harry", the program prints

H

a

r

r

y

5)  Write a program that reads a word and prints the word in reverse. For example, if the

user provides the input "Harry", the program prints yrraH

6)Simulate the Monty Hall problem

Answer 1

I have answered the first two questions you put forward. I can work on the rest between tonight and tomorrow.

/*1) */

function sums(lower,upper){

let even = 0;

let squares = 0;

for(let i = lower; i<=upper; i++){

squares += i*i;//this part adds the sum of all squared values between the lower and upper value

if(i%2===0){

even += i; //this part generates the sum of all even numbers in the range

}

}

return `the sum of all evens is ${even} and the sum of all sqaures is ${squares}`

}

console.log(sums(2,100))

/*2) */

function endlessNums(...nums){

let evens =[];

let odds =[];

for(let i =0; i <nums.length;i++){

if(nums[i]%2===0){ //checks if the number is odd or even, the increments the corresponding value

evens++

} else {

odds++

}

}

const ordered = nums.sort((a,b)=>{return a-b;});

return `odd count:${odds}; even count:${evens} ; max:${ordered[0]} ; min:${ordered[ordered.length -1]};`

}

console.log(endlessNums(3,6,65,23,65,34,45));