##### 示例分析： ``` //源代码 Test.java package edu.hr.jvm; import edu.hr.jvm.bean; public class Test{ public static void main(String[] args){ Act act=new Act(); act.doMathForever(); } } //源代码 Act.java package edu.hr.jvm.bean; public class Act{ public void doMathForever(){ int i=0; for(;;){ i+=1; i*=2; } } } ```