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/**ÀàA**/ 
class TestA {  
    public TestA(String a){  
        System.out.println(a);  
    }  
}  
/**ÀàB**/ 
 class TestB {  
    public TestB(String b){  
        System.out.println(b);  
    }  
}  
/**Àà Parent **/ 
 class Parent {  
    private static TestA testA1 = new TestA("ParentµÄ¾²Ì¬±äÁ¿");  
    static {  
        System.out.println("ParentµÄ¾²Ì¬³õʼ»¯Ä£¿é");  
    }  
    private  TestA testA2 = new TestA("Parent±äÁ¿");  
    {  
        System.out.println("ParentµÄ³õʼ»¯Ä£¿é");  
    }  
    public Parent(){  
        System.out.println("ParentµÄ¹¹Ô캯Êý");  
    }  
}  
 
/**ParentµÄ×ÓÀàSubClass**/ 
public class SubClass extends Parent{  
    private static TestA testA1 = new TestA("SubClassµÄ¾²Ì¬±äÁ¿1");  
    static {  
        System.out.println("SubClassµÄ¾²Ì¬³õʼ»¯Ä£¿é1");  
    }  
    private static TestA testA2 = new TestA("SubClassµÄ¾²Ì¬±äÁ¿2");  
    static {  
        System.out.println("SubClassµÄ¾²Ì¬³õʼ»¯Ä£¿é2");  
    }  
    private  TestA testA3 =


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Double d2 = Double.parseDouble("0.005");
System.out.println(d1);
System.out.println(d1.toString());
System.out.println(d2);
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