JAVA entry procedures lowercase to uppercase dialogs are implemented

package job;
Import javax.swing.JOptionPane;
public class lowercase to uppercase dialog {


public static void main (String [] args) { String JOptionPane.showInputDialog TEMP = (null, "Please enter any lowercase", " INPUT ", JOptionPane.QUESTION_MESSAGE); char temp.charAt = B (0); char C = (char) (int) (B-32); JOptionPane.showMessageDialog (null," to uppercase "+ c," output ",  JOptionPane.INFORMATION_MESSAGE); } }