2011年JAVA认证模拟题(34)
Q100 What is the value of 8|9&10^11?A 8
B 9
C 10
D 11
Q101 What is the output of the following program?
class S1 {
public static void main(String [] args)
{
new S2();
}
S1() {
System.out.print(“S1”);
}
}
class S2 extends S1 {
S2() {
System.out.print(“S2”);
}
}
A S1
B S2
C S1S2
D S2S1
Q102 What would be the result of attempting to compile and run the following piece of code?
public class Test {
static int x;
public static void main (String args[])
{
System.out.println(“Value is “ + x);
}
}
A The output “Value is 0 ” is printed.
B An object of type NullPointerException is thrown.
C An “illegal array declaration syntax” compiler error occurs.
D A “ possible reference before assignment” compiler error occurs.
Q100 D
Q101 C
Q102 A
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