2011年JAVA认证模拟题(24)
Q70 What is the output of the following program? public class Question {public static void main(String args[])
{
Object[] o = new Object;
byte[] b = new byte;
System.out.print(o);
System.out.println(b);
}
}
A 0
B o0
C A NullPointerException is thrown.
D null0
2011年JAVA认证模拟题(24)
</p> Q71 Which of the following are valid Java identifiers?A my-id
B my_id
C 101ids
D id101
Q72 Which methods will cause a Frame to be displayed?
A pack()
B setVisible()
C display()
D displayFrame()
Q070 D
Q071 BD
Q072 B
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