單項選擇題

public class foo {  
public static void main (Stringargs) { 
String s;  
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.

微信掃碼免費搜題