单选题package test1;  public class Test1 {  static int x = 42;  }  package test2;  public class Test2 extends test1.Test1 {  public static void main(String[] args) { System.out.println(“x = “ + x);  }  }  What is the result?()A  x = 0B  x = 42C  Compilation 

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单选题
package test1;  public class Test1 {  static int x = 42;  }  package test2;  public class Test2 extends test1.Test1 {  public static void main(String[] args) { System.out.println(“x = “ + x);  }  }  What is the result?()
A

 x = 0

B

 x = 42

C

 Compilation fails because of an error in line 2 of class Test2.

D

 Compilation fails because of an error in line 3 of class Test1.

E

 Compilation fails because of an error in line 4 of class Test2.

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