考题
34.HashMapprops=newHashMap();35.props.put(”key45”,somevalue”);36.props.put(”key12”,someothervalue”);37.props.put(”key39”,yetanothervalue”);38.Sets=props.keySet();39.//insertcodehereWhat,insertedatline39,willsortthekeysinthepropsHashMap?()A.Arrays.sort(s);B.s=newTreeSet(s);C.Collections.sort(s);D.s=newSortedSet(s);
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请看以下存储过程beginbegin语句1exceptionwhen othersdbms_output.put_line('错误1');end;begin语句2dbms_output.putline('错误2');end;exceptionwhen others thendbms_output.put_line("错误3");end;请问,当语句1,语句2出错时,该存储过程输出字符串分别是什么?
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下列事件过程的功能是:建立一个名为Datal的随机文件,存放角度值及这些角度的正弦函数值和余弦函数值,角度为1,2,3,…,90。请在空白处填入适当的内容,将程序补充完整。 Private Type Ang K As Integer Sinx As Single Cosx As Single End Type Dim Ksc As Ang Private Sub Form_Click() Dim Y As Single Dim i As Integer DimA...\Data1.txtFor Random As #1 Len=10 Put #1,i,KscB...\Data1.txtFor Random As #1 Len=10 Put #1,Y,KscC...\Data1.txtFor Random As #1 Put #1,i,KscD...\Data1.txtFor Random As #1 Put #1,Y,Ksc
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Which of the following tools can make recommendations for indexes and/or MQTs to improve the performance of DB2 applications?()
A.Design AdvisorB.Visual ExplainC.Performance AdvisorD.Configuration Assistant
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下面程序的输出结果是()。includeusing namespace std;void main(){char cl='a',c2='c
下面程序的输出结果是( )。 #include<iostream> using namespace std; void main() { char cl='a',c2='c'; cout.put('a').put('c').put('\n'); cout.put(c1).put(c2); }A.ac a cB.ac acC.a c ac cD.a c
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Your network consists of a single Active Directory domain named contoso.com. All servers run WindowsServer 2003 Service Pack 2 (SP2). The domain contains a domain Distributed File System (DFS) root named DFSroot.The network contains the offices shown in the following table.Server1 and Server2 currently each host a share named Applications.You need to implement a solution to meet the following requirements:·Automatically redirect users to the Applications folder in their local site.·Ensure that the contents of the Applications shares on Server1 and Server2 are automatically synchronized.What should you do? ()A. In the DFS root, create one link named Applications that has \\server1\applications and \\server2\applications as targets.B. In the DFS root, create a root target that points to \\server1\applications. Create a second root target that points to \\server2\applications.C. In the DFS root, create one link named Applications1 that has \\server1\applications as its target. Create a second link named Applications2 that has \\server2\applications as its target.D. In the Main-office-computers OU, publish the \\server1\applications share. In the Branch-office-computers OU, publish the \\server2\applications share.
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RefertotheoutputshownonswitchSW1below:VLAN1bridgeprioritysetto8192.VLAN1bridgemaxagingtimesetto20.VLAN1bridgehellotimesetto2.VLAN1bridgeforwarddelaysetto15.SwitchisnowtherootswitchforactiveVLAN1.Whatcommandwouldyouentertoreproducethisoutput?
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给定如下Java代码,编译运行的结果是()。 public class Test { public static void main(String[] args) { Map<String, String> map = new HashMap<String, String>(); String s = "code"; map.put(s, "1"); map.put(s, "2"); System.out.println(map.size()); } }A.编译时发生错误B.运行时引发异常C.正确运行,输出:1D.正确运行,输出:2
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S3支持的主要操作只有:Get、Put和Delete。
考题
给定如下Java代码,编译运行的结果是() public class Test { public static void main(String[] args) { Map<String, String> map = new HashMap<String, String>(); String s = "code"; map.put(s, "1"); map.put(s, "2"); System.out.println(map.size()); } }A.编译时发生错误B.运行时引发异常C.正确运行,输出:1D.正确运行,输出:2