多选题Which two statements are true regarding the creation of a default constructor？（）AThe default constructor initializes method variables.BThe default constructor invokes the no-parameter constructor of the superclass.CThe default constructor initializes the instance variables declared in the class.DIf a class lacks a no-parameter constructor，， but has other constructors， the compiler creates a default constructor.EThe compiler creates a default constructor only when there are no other constructors for the class.
多选题
Which two statements are true regarding the creation of a default constructor？（）
A
The default constructor initializes method variables.
B
The default constructor invokes the no-parameter constructor of the superclass.
C
The default constructor initializes the instance variables declared in the class.
D
If a class lacks a no-parameter constructor，， but has other constructors， the compiler creates a default constructor.
E
The compiler creates a default constructor only when there are no other constructors for the class.
参考解析
解析：
暂无解析
相关考题：
The user SYS creates a job by using the following command:Which two statements are true about the job that was created by the preceding command? ()(Choose two.) A. The job is enabled by default after creationB. The job is automatically dropped after the end dateC. The job executes with the privileges of the user SYSD. The globalization environment that exists at the time of the job creation prevails at the job runs
Which two statements regarding symmetric key encryption are true?() (Choose two.) A. The same key is used for encryption and decryption.B. It is commonly used to create digital certificate signatures.C. It uses two keys: one for encryption and a different key for decryption.D. An attacker can decrypt data if the attacker captures the key used for encryption.
Which two statements are true regarding L2TP? ()(Choose two.) A. Tunnels are initiated by the LACB. Tunnels are initiated by the LNSC. By default, subscriber authentication occurs on the LNSD. By default, subscriber authentication occurs on the LAC
Which two statements regarding firewall user authentication client groups are true?（） (Choose two.)A、A client group is a list of clients associated with a group.B、A client group is a list of groups associated with a client.C、Client groups are referenced in security policy in the same manner in which individual clients are referenced.D、Client groups are used to simplify configuration by enabling firewall user authentication without security policy.
Which two statements are true regarding the creation of a default constructor？（） A、 The default constructor initializes method variables.B、 The compiler always creates a default constructor for every class.C、 The default constructor invokes the no-parameter constructor of the superclass.D、 The default constructor initializes the instance variables declared in the class.E、 When a class has only constructors with parameters， the compiler does not create a default constructor.
Which two statements are true regarding the role of the Routing Engine (RE)?（）A、The RE controls and monitors the chassis.B、The RE manages the Packet Forwarding Engine (PFE).C、The RE receives a copy of the forwarding table from the forwarding plane.D、The RE implements class of service (COS).
Which two statements are true regarding high-availability chassis clustering？（）A、A chassis cluster consists of two devices.B、A chassis cluster consists of two or more devices.C、Devices participating in a chassis cluster can be different models.D、Devices participating in a chassis cluster must be the same models
Which two statements are true regarding L2TP? （）(Choose two.)A、Tunnels are initiated by the LACB、Tunnels are initiated by the LNSC、By default, subscriber authentication occurs on the LNSD、By default, subscriber authentication occurs on the LAC
Which two statements regarding asymmetric key encryption are true？（）A、The same key is used for encryption and decryption.B、It is commonly used to create digital certificate signatures.C、It uses two keys： one for encryption and a different key for decryption.D、An attacker can decrypt data if the attacker captures the key used for encryption
Which two statements are TRUE regarding Coherence Indexes ？ （）A、 indexes are maintained by cache entry ownesB、 an application should not suggest an index that another aplication had suggestedC、 indexes cannot be sortedD、 each application using Coherence may suggest the same set of indexes when it starts
Which two statements are true regarding subqueries? （）A、A subquery can retrieve zero or more rows B、Only two subqueries can be placed atone level C、A subquery can be used only in SQL query statements D、A subquery can appear on either side of a comparison operator E、There is no limit on the number of subquery levels in the WHERE clause of a SELECT statement
Which two statements are true regarding the USING and ON clauses in table joins?（）A、Both USING and ON clauses can be used for equijoins and nonequijoins B、Amaximum of one pair of columns can be joined between two tables using the ON clause C、The ON clause can be used to join tables on columns that have different names but compatible data types D、The WHERE clause can be used to apply additional conditions in SELECT statements containing the ON or the USING clause
多选题Which two statements are true regarding the USING and ON clauses in table joins?（）ABoth USING and ON clauses can be used for equijoins and nonequijoinsBAmaximum of one pair of columns can be joined between two tables using the ON clauseCThe ON clause can be used to join tables on columns that have different names but compatible data typesDThe WHERE clause can be used to apply additional conditions in SELECT statements containing the ON or the USING clause
多选题Which two statements are true regarding the ORDER BY clause? （）AIt is executed first in the query executionBIt must be the last clause in the SELECT statementCIt cannot be used in a SELECT statement containing a HAVING clauseDYou cannot specify a column name followed by an expression in this clauseEYou can specify a combination of numeric positions and column names in this clause
多选题Regarding an IPsec security association （SA）， which two statements are true？（）AIKE SA is bidirectional.BIPsec SA is bidirectional.CIKE SA is established during phase 2 negotiations.DIPsec SA is established during phase 2 negotiations.
多选题Which two statements regarding asymmetric key encryption are true？（）AThe same key is used for encryption and decryption.BIt is commonly used to create digital certificate signatures.CIt uses two keys： one for encryption and a different key for decryption.DAn attacker can decrypt data if the attacker captures the key used for encryption
多选题Which two statements are true regarding the creation of a default constructor？ （）AThe default constructor initializes method variables.BThe compiler always creates a default constructor for every class.CThe default constructor invokes the no-parameter constructor of the superclass.DThe default constructor initializes the instance variables declared in the class.EWhen a class has only constructors with parameters， the compiler does not create a default constructor.
多选题Which two statements are true regarding hot patching？（）AIt requires relinking of the Oracle binary.BIt does not require database instance shutdown.CIt can detect conflicts between two online patches.DIt is available for installing all patches on all platforms.EIt works only in a single database instance environment.
多选题Which two statements are TRUE regarding Coherence Indexes ？ （）Aindexes are maintained by cache entry ownesBan application should not suggest an index that another aplication had suggestedCindexes cannot be sortedDeach application using Coherence may suggest the same set of indexes when it starts
多选题Which two statements are true regarding L2TP? （）(Choose two.)ATunnels are initiated by the LACBTunnels are initiated by the LNSCBy default, subscriber authentication occurs on the LNSDBy default, subscriber authentication occurs on the LAC
多选题Which two statements regarding firewall user authentication client groups are true?（） (Choose two.)AA client group is a list of clients associated with a group.BA client group is a list of groups associated with a client.CClient groups are referenced in security policy in the same manner in which individual clients are referenced.DClient groups are used to simplify configuration by enabling firewall user authentication without security policy.
多选题Which two statements are true regarding the role of the Routing Engine (RE)?（）AThe RE controls and monitors the chassis.BThe RE manages the Packet Forwarding Engine (PFE).CThe RE receives a copy of the forwarding table from the forwarding plane.DThe RE implements class of service (COS).
多选题Which two statements are true regarding single row functions?（）AThey accept only a single argumentBThey can be nested only to two levelsCArguments can only be column values or constantsDThey always return a single result row for every row of a queried tableEThey can return a data type value different from the one that is referenced
多选题Which two statements regarding a SQL profile are true？（）AIt is built by Automatic Tuning Optimizer.BIt cannot be stored persistently in the data dictionary.CIt can be used by the query optimizer automatically.DIt can be created manually by using the CREATE PROFILE command.
多选题Which two statements regarding symmetric key encryption are true?（） (Choose two.)AThe same key is used for encryption and decryption.BIt is commonly used to create digital certificate signatures.CIt uses two keys: one for encryption and a different key for decryption.DAn attacker can decrypt data if the attacker captures the key used for encryption.
多选题Which two statements are true regarding high-availability chassis clustering？（）AA chassis cluster consists of two devices.BA chassis cluster consists of two or more devices.CDevices participating in a chassis cluster can be different models.DDevices participating in a chassis cluster must be the same models