import javax.swing.JOptionPane;
public class processInputData {

    public static void main(String[] args) {
   
        String name;
        while (true) {
        
                name = JOptionPane.showInputDialog(null,"Enter Name:");
            if(name=="ai"){
                System.out.println("程序结束");
                break;
                }
            }
        }
    }

字符串这样比较为什么不行，而要用equals（）方法比较呢？求大虾解答~~