Questions 1
What is the difference between the following 2 declaration statements?
char option;
option = 'C';
and
char option='C';
Questions 2
Why sometimes we initialize variables and sometimes we don’t?
For example in the following program, we initialized the string name,
but we did not initialize the string msg:
1 import javax.swing.JOptionPane;
2
3 public class GetInputFromKeyboard {
4
5 public static void main( String[] args ){
6 String name = "";
7 name=JOptionPane.showInputDialog(“Please enter your name");
8 String msg = "Hello " + name + "!";
9 JOptionPane.showMessageDialog(null, msg);
10 }
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