Write a program that will repeatedly ask the user to enter a floating-point numb

Question

Write a program that will repeatedly ask the user to enter a floating-point number. the program should continue to ask the user to enter numbers until a zero or negative number is entered. At that point, the program should display the largest number entered. Example: the largest number entered was: 47.5 Write a program that will ask the user to enter an integer. the program should add all the integers from 1 to the entered number using a "while" loop, and display the sum. Show how the "while" loop in problem 3 can be re-written using a "for" loop instead. Write a program that includes a function called sqroot() that returns the squareroot of a positive integer. in the function, use a loop to find the squareroot . If the number does not have an integer squareroot , the function should return a value of zero. in the main() function, ask the user to enter a positive integer, then call the function and display the result. If a zero is returned, it should display "No integer squareroot ".

Explanation / Answer

package chegg;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Scanner;

public class Question2 {

   public static void main(String[] args) {

       Scanner scan = new Scanner(System.in);
       List<Integer> numbers = new ArrayList<Integer>();
       int num = 0;
       System.out.println("Enter numbers");
       while (scan.hasNextInt() && scan.nextInt()>0) {
           num = scan.nextInt();
           numbers.add(num);
       }
       System.out.println("largest number : " +Collections.max(numbers));
   }
}

---------------------------------------------------------------------
package chegg;

import java.util.Scanner;

public class Question3 {

   public static void main(String[] args) {

       Scanner scan = new Scanner(System.in);
       int i = 1;
       int num = 0;
       int sum = 0;

       System.out.print("Enter number ");
       num = scan.nextInt();
       while (i <= num) {
           sum = sum + i;
           ++i;
       }
       System.out.print("Sum =" + sum);

   }

}
--------------------------------------------------------------------

import java.util.Scanner;

public class Question4 {

   public static void main(String[] args) {

       Scanner scan = new Scanner(System.in);

       int num = 0;
       int sum = 0;

       System.out.print("Enter number ");
       num = scan.nextInt();
       for (int i = 1; i <= num; i++) {
           sum = sum + i;
       }
       System.out.print("Sum =" + sum);
   }

}

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