多项选择题
Given：
10. class One {
11. void foo（） { }
12. }
13. class Two extends One {
14. //insert method here
15. }
Which three methods， inserted individually at line 14， will correctly complete class Two？（）
A. public void foo（） { /* more code here */ }
B. private void foo（） { /* more code here */ }
C. protected void foo（） { /* more code here */ }
D. int foo（） { /* more code here */ }
E. void foo（） { /* more code here */ }
相关考题
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单项选择题
Given: What is the result?（）
A.[1, 2, 3, 5]
B.[2, 1, 3, 5]
C.[2, 5, 3, 1]
D.[5, 3, 2, 1]
E.[1, 3, 5, 2]
F.Compilation fails.
G.An exception is thrown at runtime. -
多项选择题
You have altered a non-unique index to be invisible to determine if queries execute within an acceptable response time without using this index. Which two are possible if table updates are performed which affect the invisible index columns?（）
A. The index remains invisible.
B. The index is not updated by the DML statements on the indexed table.
C. The index automatically becomes visible in order to have it updated by DML on the table.
D. The index becomes unusable but the table is updated by the DML.
E. The index is updated by the DML on the table. -
单项选择题
A simple master-to-slave replication is currently being used. The following information is extracted from the SHOW SLAVE STATUS output: Last_SQL_Error: Error 'Duplicate entry '8' for key 'PRIMARY' ' on query. Default database: 'mydb'. Query: 'insert into mytable VALUES ('8' , 'George') ' Skip_Counter: 0 Retrieved _Gtid_Set: 38f32e23480a7-32a1-c323f78067fd37821: 1-8 Auto _Position: 1 You execute a "SHOW CREATE TABLE mytable" on the slave: CREATE TABLE 'mytable' ( 'ID' int(11) NOT NULL DEFAULT '0', 'name' char(10) DEFAULT NULL, PRIMARY KEY ('ID') ) The table mytable on the slave contains the following: You have issued a STOP SLAVE command. One or more statements are required before you can issue a START SLAVE command to resolve the duplicate key error. Which statement should be used（）
A.SET GTID_NEXT="CONSISTENCY"; BEGIN; COMMIT; SET GTID_NEXT="AUTOMATIC"
B.SET GLOBAL enforce_gtid_consistency=ON
C.SET GTID_EXECUTED="38f32e23480a7-32a1-c323f78067fd37821 : 9"
D.SET GTID_NEXT="38f32e23480a7-32a1-c323f78067fd37821 : 9"; BEGIN; COMMIT; SET GTID_NEXT="AUTOMATIC"
E.SET GLOBAL SQL_SKIP_SLAVE_COUNTER=1
