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【简答题】
直齿圆锥齿轮有哪些类型?有什么特点?用于什么场合?
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反馈参考答案：
举一反三
【单选题】Analyze the following code. public class Test { int x; public Test(String t) { System.out.println("Test"); } public static void main(String[] args) { Test test = null; System.out.println(test.x); } }
A.
The program has a compile error because x has not been initialized.
B.
The program has a compile error because test is not initialized.
C.
The program has a runtime NullPointerException because test is null while executing test.x
D.
The program has a compile error because you cannot create an object from the class that defines the object.
【简答题】在20世纪60年代之前，商业银行的风险管理处于资产管理阶段，强调（ ）
【单选题】程序执行的结果 public class Test { String name="Tom"; public Test(String name){ name=name; } public static void main(String [] args){ Test t = new Test("Jack"); System.out.println(t.name); } }
A.
编译错误
B.
Jack
C.
Tom
D.
以上答案都不对
【单选题】Analyze the following code. public class Test { int x; public Test(String t) { System.out.println("Test"); } public static void main(String[] args) { Test test = null; System.out.println(test.x); } }
A.
The program has a compile error because x has not been initialized.
B.
The program has a compile error because test is not initialized.
C.
The program has a runtime NullPointerException because test is null while executing test.x.
D.
The program has a compile error because you cannot create an object from the class that defines the object.
E.
The program has a compile error because Test does not have a default constructor.
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