PROGRAM :
import javax.swing.JOptionPane;
public class DigitCheck {
public static void main(String[] args) {
int a ;
String s = JOptionPane.showInputDialog("enter a number");
a=Integer.parseInt(s);
if(a>=0 && a<9)
{ JOptionPane.showMessageDialog(null,"one digit number");
}
else if (a>9 && a<99){
JOptionPane.showMessageDialog(null,"two digit number");
}
else if (a>99 && a<999){
JOptionPane.showMessageDialog(null,"three digit number");
}
else if (a>999 && a<9999){
JOptionPane.showMessageDialog(null,"four digit number");
}
else if (a>9999 && a<99999){
JOptionPane.showMessageDialog(null,"five digit number");
}
else
JOptionPane.showMessageDialog(null,"more than five digit");
}
}
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