abstractclassAbstractIt{2.abstractfloatgetFloat();3.}4.publicclassAbstractTestextendsAbstractIt{5.privatefloatf1=1.0f;6.privatefloatgetFloat(){returnf1;}7.}Whatistheresult?() A.Compilationsucceeds.B.Anexceptionisthrown.C.Compilationfailsbecauseofanerroratline2.D.Compilationfailsbecauseofanerroratline6.
abstractclassAbstractIt{2.abstractfloatgetFloat();3.}4.publicclassAbstractTestextendsAbstractIt{5.privatefloatf1=1.0f;6.privatefloatgetFloat(){returnf1;}7.}Whatistheresult?()
A.Compilationsucceeds.
B.Anexceptionisthrown.
C.Compilationfailsbecauseofanerroratline2.
D.Compilationfailsbecauseofanerroratline6.
相关考题：
publicclassA{2.publicvoiddoit(){3.}4.publicStringdoit(){5.returna”;6.}7.publicdoubledoit(intx){8.return1.0;9.}10.}Whatistheresult?() A.Anexceptionisthrownatruntime.B.Compilationfailsbecauseofanerrorinline7.C.Compilationfailsbecauseofanerrorinline4.D.CompilationsucceedsandnoruntimeerrorswithclassAoccur.
1.publicinterfaceA{2.publicvoiddoSomething（Stringthing）；3.}1.publicclassAImplimplementsA{2.publicvoiddoSomething（Stringmsg）{}3.}1.publicclassB{2.publicAdoit（）{3.//morecodehere4.}5.6.publicStringexecute（）{7.//morecodehere8.}9.}1.publicclassCextendsB{2.publicAImpldoit（）{3.//morecodehere4.}5.6.publicObjectexecute（）{7.//morecodehere8.}9.}Whichstatementistrueabouttheclassesandinterfacesintheexhibit？（）
interfaceTestA{StringtoString();}2.publicclassTest{3.publicstaticvoidmain(String[]args){4.System.out.println(newTestA(){5.publicStringtoString(){returntest”;}6.}7.}8.}Whatistheresult?() A.testB.nullC.Anexceptionisthrownatruntime.D.Compilationfailsbecauseofanerrorinline1.E.Compilationfailsbecauseofanerrorinline4.F.Compilationfailsbecauseofanerrorinline5.
abstractclassabstrctIt{abstractfloatgetFloat();}publicclassAbstractTestextendsAbstractIt{privatefloatf1=1.0f;privatefloatgetFloat(){returnf1;}}Whatistheresult?() A.Compilationissuccessful.B.Anerroronline6causesaruntimefailure.C.Anerroratline6causescompilationtofail.D.Anerroratline2causescompilationtofail.
publicclassA{2.voidA(){3.System.out.println(ClassA”);4.}5.publicstaticvoidmain(String[]args){6.newA();7.}8.}Whatistheresult?() A.ClassAB.Compilationfails.C.Anexceptionisthrownatline2.D.Anexceptionisthrownatline6.E.Thecodeexecuteswithnooutput.
下列程序中注释的哪个代码（A，B，C，D）是错误的（无法通过编译）？A．abstract class A { abstract float getFloat (); void f() //B { } }B．public class B extends A { private float m = 1.0f; private float getFloat () //D { return m; } }C．bstract class A { abstract float getFloat (); //A void f() { } }D．public class B extends A { private float m = 1.0f; //C private float getFloat () { return m; } }
下列程序中注释的哪个代码（A，B，C，D）是错误的（无法通过编译）？A．abstract class A { abstract float getFloat (); //A void f() { } }B．abstract class A { abstract float getFloat (); void f() //B { } }C．public class B extends A { private float m = 1.0f; //C private float getFloat () { return m; } }D．public class B extends A { private float m = 1.0f; private float getFloat () //D { return m; } }
解释下列术语。 1.音节 2.音素 3.辅音 4.元音 5.声母 6.韵母 7.声调