多项选择题

Which two statements are true regarding the creation of a default constructor？（）

A. The default constructor initializes method variables.
B. The default constructor invokes the no-parameter constructor of the superclass.
C. The default constructor initializes the instance variables declared in the class.
D. If a class lacks a no-parameter constructor，， but has other constructors， the compiler creates a default constructor.
E. The compiler creates a default constructor only when there are no other constructors for the class.

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单项选择题

You want a class to have access to members of another class in the same package. Which is the most restrictive access modifier that will accomplish that will accomplish this objective？（）

A. Public
B. Private
C. Protected
D. Transient
E. No access modifier is required.

单项选择题

Which will declare a method that is available to all members of the same package and can be referenced without an instance of the class？（）

A. Abstract public void methoda（）；
B. Public abstract double methoda（）；
C. Static void methoda（double d1）{}
D. Public native double methoda（） {}
E. Protected void methoda（double d1） {}

单项选择题

//point X
public class foo {
public static void main （String[]args） throws Exception {
java.io.printWriter out = new java.io.PrintWriter {
new java.io.outputStreamWriter （System.out）， true；
out.printIn（“Hello”）；
}
}
}
Which statement at PointX on line 1 allows this code to compile and run？（）

A. Import java.io.*；
B. Include java.io.*；
C. Import java.io.PrintWriter；
D. Include java.io.PrintWriter；
E. No statement is needed.