LabExer#13

13. Write a fragment of code that will compute the sum of the first n positive odd integers. For example, if n is 5, you should compute 1 + 3 + 5 + 7 + 9.




import javax.swing.JOptionPane;

public class OddIntegers{   

    public static void main(String[] args){
           
        int a=1,b=2,n,num=0;

        n=Integer.parseInt(JOptionPane.showInputDialog("How many odd integers do you want to display? "));
       
        for (int i=0;i<n;i++){
        System.out.print(a + " + ");
        a=a+b;
        num=n*n;
        }
        System.out.println(" ");
        System.out.println("The sum of all odd integers is: "+num);
           
    }
}