operater % cannot be applied to java.lang.String.int

[ahmee]

this my program code
these are my errors below please help me out....guys

operater % cannot be applied to java.lang.String.int
operater / cannot be applied to java.lang.String.int
operater + cannot be applied to <any>,int

import javax.swing.*;
class demo
{
public static void main(String[] args)

{
String str;
int l,sum=0,

str=Integer.parseInt(JOptionPane.showInputDialog(" enter integer"));


l=str.length();

for(int i=1;i<=l;i++)
{
sum=(str%10)+sum;
str=str/10;

System.out.println("sum =" + sum);
System.out.println("str =" + str);
}






}

}

[anurag275125]

The problem is that, you're performing %, and / operations on a String.
try this...

import javax.swing.*;
class Demo
{
public static void main(String[] args)

{
int str;
String s;
int l,sum=0;

s=JOptionPane.showInputDialog(" enter integer");
str=Integer.parseInt(s);


l=s.length();

for(int i=1;i<=l;i++)
{
sum=(str%10)+sum;
str=str/10;
}
System.out.println("sum =" + sum);
System.out.println("str =" + str);

}

}