1z1-829試験無料問題集（50題）「Oracle Java SE 17 Developer 認定」

出題：1

Given the directory structure:

Given the definition of the Doc class:

Which two are valid definition of the wordDoc class?

A. Package p1, p2;
Public non-sealed class WordDoc extends Doc ()

B. Package p1, p2;
Public sealed class WordDoc extends Doc ()

C. Package p1;
Public non-sealed class wordDoc extends Doc ()

D. Package p1,
non-sealed abstract class WordDoc extends Doc ()

E. Package p1;
Public class wordDoc extends Doc ()

F. Package p1;
Public final class WordDoc extends Doc ()

正解：C,F 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：2

Given the code fragment:

abstract sealed interface SInt permits Story, Art { default String getTitle() { return "Book Title" ; }
}
Which set of class definitions compiles?

A. Non-sealed interface story extends SInt {}
Non-sealed interaface Art extends Sint {}

B. Public interface story extends sInd {}
Public interface Art extends SInt {}

C. Non-sealed interface story extends SInt {}
Class Art implements Sint {}

D. Interace story extends STnt {}
Interface Art extends SInt {}

E. Sealed interface Storty extends sInt {}
Non-sealed class Art implements Sint {}

正解：E 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：3

Given the code fragment:

A. True:false:true:false

B. True:false:false:false

C. True:false:true:true

D. True:true:false:false

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：4

Given the code fragment:

Which code fragment invokes all callable objects in the workers set?

A.

B.

C.

D.

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：5

Given the code fragments:

Which action prints Wagon : 200?

A. At line n2, in the main method signature, add throws IoException, ClassNotFoundException.

B. At Line n3, replace Car with LuxurayCar.

C. At line n1, implement the java.io, Serializable interface.

D. At line n2, in the main method signature, add throws IOException, ClassCastException.

E. At line n3, replace readObject (0 with readLine().

F. At Line n1, implement the java.io.AutoCloseable interface

正解：A 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

1z1-829試験無料問題集「Oracle Java SE 17 Developer 認定」