If the warnings ________, the engine cuts out and the hazard warning lights go on.
A gounheeded
B gounheededly
C gotobeunheeded
D gounheeding
第1题:
publicclassWow{publicstaticvoidgo(shortn){System.out.println(”short”);}publicstaticvoidgo(Shortn){System.out.println(”SHORT”);}publicstaticvoidgo(Longn){System.out.println(”LONG”);}publicstaticvoidmain(String[]args){Shorty=6;intz=7;go(y);go(z);}}Whatistheresult?()
A.shortLONG
B.SHORTLONG
C.Compilationfails.
D.Anexceptionisthrownatruntime.
第2题:
1.publicclassGoTest{
2.publicstaticvoidmain(String[]args){
3.Sentea=newSente();a.go();
4.Gobanb=newGoban();b.go();
5.Stonec=newStone();c.go();
6.}
7.}
8.
9.classSenteimplementsGo{
10.publicvoidgo(){System.out.println(”goinSente.”);}
11.}
12.
13.classGobanextendsSente{
14.publicvoidgo(){System.out.println(”goinGoban”);}
15.}
16.
17.classStoneextendsGobanimplementsGo{}
18.
19.interfaceGo{publicvoidgo();}
Whatistheresult?()
第3题:
A.warningsonly
B.warnings,notifications,error,debugging,informational
C.warnings,errors,critical,alerts,emergencies
D.notifications,warnings,errors
E.warnings,errors,critical,alerts
第4题:
publicclassYikes{publicstaticvoidgo(Longn){System.out.println(”Long);}publicstaticvoidgo(Shortn){System.out.println(”Short);}publicstaticvoidgo(intn){System.out.println(”int);}publicstaticvoidmain(String[]args){shorty=6;longz=7;go(y);go(z);}}Whatistheresult?()
A.intLong
B.ShortLong
C.Compilationfails.
D.Anexceptionisthrownatruntime.
第5题:
A.Warningsonly
B.debugging,informational,notifications,warnings
C.warnings,errors,critical,alerts,emergencies
D.notifications,warnings,errors
E.warnings,errors,critical,alerts
第6题:
6、对于下述命令,如何利用pipe符号进行改写: by_cut <- group_by(diamonds, cut) count_cuts <- mutate(by_cut, N = n())
A.count_cuts <- diamonds %>% group_by(cut) %>% mutate(N = n())
B.count_cuts <- diamonds %>% mutate(N = n()) %>% group_by(cut)
C.count_cuts <- diamonds %<% group_by(cut) %<% mutate(N = n())
D.count_cuts <- diamonds %<% mutate(N = n()) %<% group_by(cut)