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Chelsea
Java Compilation
1 Answer(s)      4 years and 7 months ago
Posted in : Java Beginners


How would i write a complete java program which, using a do-while loop, reads integers from the keyboard and sums them until the sum hits or exceeds 30. Then print out the sum.

is it like this:

import java.util.Scanner;
public class Sum
{
public static void main(String[] args)
{
int sum=0;
int sum1=0;
int total;
Scanner kb = new Scanner(System.in);
System.out.print("enter an integer: ");
sum = kb.nextInt();

do
{
total = sum + sum1;
System.out.print("enter an integer: ");
sum = kb.nextInt();
}
while(sum>=30)
System.out.println("Sum is " + total);
}
}

Here is an example of how i want the output to look like:

enter an integer: 35
Sum is 35

or this:

enter an integer: 20
enter an integer: -5
enter an integer: 9
enter an integer: 6
Sum is 30

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View Answers

March 11, 2010 at 1:01 PM


Hi Friend,

Try the following code:

import java.util.Scanner;
public class Sum
{
public static void main(String[] args)
{
int sum=0;
Scanner kb = new Scanner(System.in);
do
{
System.out.print("enter an integer: ");
int num=kb.nextInt();
sum=sum+num;
}
while(sum!=30);
System.out.println("Sum is " +sum);
}
}

Thanks


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