![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
有如下applet代码: import java.applet.*; import java.awt.*; public class MyApplet extends Applet { AA s; public void int() { s = new AA('Hello!', 'I love JAVA.'); } public void paint(Graphics g) { g.drawString(s.toString(), 30, 50); } } class AA { String s1; String s2; AA(String str1, String str2) { s1 = str1; s2 - str2; } public String toString() { return s1 + s2; } } 运行后,窗口上将会出现什么,选择一个正确答案______。 A.Hello!