多项选择题

Which two valid declarations of a char？（）

A. Char ch = “a”；
B. Char ch = ‘\’ ‘；
C. Char ch = ‘cafe’；
D. Char ch = “cafe”；
E. Char ch = ‘\ucafe’；
F. Char ch = ‘\u10100’；
G. Char ch = （char） true；

点击查看答案

上一题目录下一题

相关考题

单项选择题

public class foo {
static String s；
public static void main （String[]args） {
system.out.printIn （“s=” + s）；
}
}
What is the result？（）

A. The code compiles and “s=” is printed.
B. The code compiles and “s=null” is printed.
C. The code does not compile because string s is not initialized.
D. The code does not compile because string s cannot be referenced.
E. The code compiles， but a NullPointerException is thrown when toString is called.

多项选择题

public interface Foo{
int k = 4；
}
Which three are equivalent to line 2？（）

A. Final int k = 4；
B. Public int k = 4；
C. Static int k = 4；
D. Private int k = 4；
E. Abstract int k = 4；
F. Volatile int k = 4；

单项选择题

int index = 1；
String [] test = new String[3]；
String foo = test[index]；
What is the result？（）

A. Foo has the value “”
B. Foo has the value null
C. An exception is thrown
D. The code will not compile