2011年JAVA认证模拟题（30）
java认证试题：2011年JAVA认证模拟题（30）Q88 What changes are needed to make the following program compile?
import java.util.*;
class Question {
public static void main(String args[])
{
String s1 = “abc”;
String s2 = “def”;
Vector v = new Vector();
v.add(s1);
v.add(s2);
String s3 = v.elementAt(0) +
v.elementAt(1);
System.out.println(s3);
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A Declare Question as public
B Cast v.elementAt(0) to a String
C Cast v.elementAt(1) to an Object
D Import java.lang
Q89 What is the value of a as the result of the following array declaration?
int [] a = {1,2,3,4,5｝;
A 1
B 2
C 3
D 4
Q90 What Java statement is used to completely abort the execution of a loop?
A The continue statement.
B The goto statement
C The exit statement
D The bread statement
Q088 B
Q089 D
Q090 D
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