第1题:

A.Alpha a = x;
B.Foo f = (Delta)x;
C.Foo f = (Alpha)x;
D.Beta b = (Beta)(Alpha)x;
第2题:
设有一共用体变量定义如下: union data { long w; float x; int y; char z;}; union data beta; 执行下列语句后,正确的共用体变量beta的值是( )。 beta.w=123456; beta.y=888; beta.x=3.1416; beta.z='x';
A.123456
B.888
C.3.1416
D.'X'
第3题:
现有如F包结构: com |一一X | |一一Alpha.class | | | |一一y I |一一Beta.class | |l-- Gamma.class 和类: class Test { Alpha a; Beta b; Gamma c; } 哪三个必须加入到类Test中,以使其通过编译?()
第4题:
class Beta { public static void main(String [] args) { Integer x = new Integer(6) * 7; if (x != 42) { System.out.print("42 "); } else if (x 〈 new Integer(44-1)) { System.out.println("less"); } else { System.out.print("done"); } } } 结果是什么?()
第5题:
Alpha测试与beta的区别?
第6题:
投资的β(Beta)
第7题:
A resource group, MY_APP, has the following configuration: Resource Group NameMY_APP Participating Node Name(s)Alpha Beta GammaStartup Policy Online On Home Node Only Fallover Policy Fallover To Next Priority Node In The List Fallback Policy Fallback To Higher Priority Node InThe List MY_APP is currently running on node Beta. MY_APP is then moved to node Gamma using C-SPOC.Nodes Alpha and Beta are shutdown and restarted. Node Alpha stabilizes approx 60 seconds before nodeBeta. What happens to the resource group, MY_APP, when nodes Alpha and Beta are restarted?()
第8题:
10. interface Foo {} 11. class Alpha implements Foo {} 12. class Beta extends Alpha {} 13. class Delta extends Beta { 14. public static void main( String[] args) { 15. Beta x = new Beta(); 16. // insert code here 17. } 18. } Which code, inserted at line 16, will cause a java.lang.ClassCastException?()
第9题:
Tag files can only be accessed using a tagdir attribute.
The sort.jsp page translates successfully and invokes the tag defined by beta.tag.
The sort.jsp page produces a translation error because a taglib directive must always have a uriattribute.
Tag files can only be placed in /WEB-INF/tags, and NOT in any subdirectories of /WEB- INF/tags.
The tagdir attribute in line 2 can be replaced by a uri attribute if a TLD referring to beta.tag is createdand added to the web application.
第10题:
Tested
Compilation fails.
The code runs with no output.
An exception is thrown at runtime.
第11题:
42
done
dot =
编译失败
第12题:
Alpha a = x;
Foo f = (Delta)x;
Foo f = (Alpha)x;
Beta b = (Beta)(Alpha)x;
第13题:
如果类Alpha继承了类Beta,则类Alpha称为派生类,类Beta称为【 】类。
第14题:
在Windows 9x环境中,若要调试运行ASP网页,此时的Web服务应选用()
第15题:
已知符号定义语句如下: ALPHA EQU 100 BETA EQU 25 GAMMA EQU 2 分别求下列各表达式的值。 (1)ALPHA*4GTBETA (2)ALPHAMODGAMMA+BETA (3)(BETA/3)LE5 (4)ALPHAANDBETA (5)GAMMAXOR(BETAEQ25)
第16题:
现有包结构: com |-- x | |-- Alpha.class | | | |-- y | |-- Beta.class | |-- Gamma.class 和类: //insert code here import com.*; import com.x.y.*; class Test { Alpha a; Beta b; Gamma c; } 哪两行分别插入后可允许代码编译?()
第17题:
现有如下包结构: com |-- x | |-- Alpha.class | | | |-- y | |-- Beta.class | |-- Gamma.class 和类: class Test { Alpha a; Beta b; Gamma c; } 哪三个必须加入到类 Test 中,以使其通过编译?()
第18题:
下列对Beta测试描述正确的是()
第19题:
class Beta { public static void main(String [] args) { Integer x = new Integer(6) * 7; if (x != 42) { System.out.print("42 "); } else if (x.equals(42)) { System.out.print("dot = "); } else { System.out.print("done"); } } } 结果为:()
第20题:
interface Beta {} class Alpha implements Beta { String testIt() { return “Tested”; } } public class Main1 { static Beta getIt() { return new Alpha(); } public static void main( String[] args ) { Beta b = getIt(); System.out.println( b.testIt() ); } } What is the result?()
第21题:
Alpha a = x;
Foo f= (Delta)x;
Foo f= (Alpha)x;
Beta b = (Beta)(Alpha)x;
第22题:
Foo.beta() is a valid invocation of beta().
Foo.alpha() is a valid invocation of alpha().
Method beta() can directly call method alpha().
Method alpha() can directly call method beta().
第23题:
Alpha a=x;
Foo f=(Delta)x;
Foo f=(Alpha)x;
Beta b=(Beta)(Alpha)x;