Given:
1 2 3 4 5 6 7 8 9 10 11 | public class Whizlabs { private String name; private boolean pass; public static void main(String[] args) { Whizlabs wb = new Whizlabs(); System.out.print("name = " + wb.name); System.out.print(",pass = " + wb.pass); } } |
What would be the output, if it is executed as a program?
A.
name =, pass =
B.
name = null, pass = null
C.
name = null, pass = false
D.
name = null pass = true
E. Compile error.
題解
Java的類別或是物件欄位會按照不同資料型態自動給定初始值。初始值如下：
String、Object：null
byte、short、int、long、float、double：0
char：\0
boolean：false
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