【C8】
A.regularly
B.ordinarily
C.traditionally
D.generally
第1题
A.Theoperationcol1.retainAll(col2)willnotmodifythecol1object.
B.Theoperationcol1.removeAll(col2)willnotmodifythecol2object.
C.Theoperationcol1.addAll(col2)willreturnanewcollectionobject,containingelementsfrombothcol1 andcol2.
D.Theoperationcol1.containsAll(Col2)willnotmodifythecol1object.
第2题
A.Thecodewillfailtocompile.
B.Theconstructorinathattakesanintasanargumentwillneverbecalledasaresultofconstructingan objectofclassborc.
C.Classchasthreeconstructors.
D.Objectsofclassbcannotbeconstructed.
E.Atmostoneoftheconstructorsofeachclassiscalledasaresultofconstructinganobjectofclassc.
第3题
A.(a=="Hello")
B.(a==b)
C.(a==c)
D.a.equals(b)
E.a.equals(d)
第4题
A.TheprogramwillterminatewithanArrayIndexOutOfBoundsException.
B.TheprogramwillterminatewithaNullPointerException.
C.4willbewrittentostandardoutput.
D.6willbewrittentostandardoutput.
E.7willbewrittentostandardoutput.
第5题
CODEFRAGMENTa:int[][]tab={{0,0,0},{0,0,0}};
CODEFRAGMENTb:inttab[][]=newint[4][];for(inti=0;i
CODEFRAGMENTc:inttab[][]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
CODEFRAGMENTd:inttab[3][2];
CODEFRAGMENTe:int[]tab[]={{0,0,0},{0,0,0},{0,0,0},{0,0,0}};
第6题
A.Markthemethodwiththekeywordpublic.
B.Markthemethodwiththekeywordprotected.
C.Markthemethodwiththekeywordprivate.
D.Markthemethodwiththekeywordpackage.
E.Donotmarkthemethodwithanyaccessibilitymodifiers.
第8题
A.x=y;
B.z=x;
C.y=(B)x;
D.z=(C)y;
E.y=(A)y;
第9题
A.ThecharAt()methodoftheStringclass.
B.ThetoUpperCase()methodoftheStringclass.
C.Thereplace()methodoftheStringclass.
D.Thereverse()methodoftheStringBufferclass.
E.Thelength()methodoftheStringBufferclass.
第10题
publicclassQ76a9{
staticStringf(){
Stringa="hello";
Stringb="bye";//(0)
Stringc=b+"!";//(1)
Stringd=b;b=a;//(2)
d=a;//(3)
returnc;//(4)}
publicstaticvoidmain(Stringargs[]){
Stringmsg=f();
System.out.println(msg);//(5)
}
}
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