多选题Which statements are true concerning the effect of the and operators?（）AFor non-negative values of the left operand， the and operators will have the same effect.BThe result of （-1 1） is 0.CThe result of （-1 1） is -1.DThe value returned by will never be negative as long as the value of the right operand is equal to or greater than 1.EWhen using the operator， the leftmost bit of the bit representation of the resulting value will always be the same bit value as the leftmost bit of the bit representation of the left operand.
多选题
Which statements are true concerning the effect of the >> and >>> operators?（）
A
For non-negative values of the left operand， the >> and >>> operators will have the same effect.
B
The result of （-1 >> 1） is 0.
C
The result of （-1 >>> 1） is -1.
D
The value returned by >>> will never be negative as long as the value of the right operand is equal to or greater than 1.
E
When using the >> operator， the leftmost bit of the bit representation of the resulting value will always be the same bit value as the leftmost bit of the bit representation of the left operand.
参考解析
解析：
暂无解析
相关考题：
以下程序booleana=false;booleanb=true;ooleanc=(abintresult=c==false?1:2;执行完后,c与result的值是()。 A.c=false;result=1;B.c=true;result=2;C.c=true;result=1;D.c=false;result=2;
Given:Which two statements are true about the result if the default locale is Locale.US?() A.The value of b is 2.B.The value of a is 3.14.C.The value of b is 2.00.D.The value of a is 3.141.E.The value of a is 3.1415.F.The value of a is 3.1416.G.The value of b is 2.0000.
Which two statements are true regarding the default behavior of the ORDER BY clause? () A.Null values are left out of the sort.B.Character values are displayed from Z to AC.Date values are displayed with the earliest value first.D.Null values are displayed last for descending sequences.E.Numeric values are displayed with the lowest values first.
In C language, the result of the logical ______ operator is 1 if the value of its operand is 0, 0 if the value of its operand is non-zero.A．ANDB．NOTC．ORD．EOR
1. public class X implements Runnable（ 2. private int x； 3. private int y； 4. 5. public static void main（String[]args） 6. X that = new X（）； 7. （new Thread（that））.start（）； 8. （new Thread（that））.start（）； 9. ） 10. 11. public void run（） （ 12. for （；；） （ 13. x++； 14. y++； 15. System.out.printIn（“x=” + x + “， y = ” + y）； 16. ） 17. ） What is the result？（）A、 Errors at lines 7 and 8 cause compilation to fail.B、 The program prints pairs of values for x and y that might not always be the same on the same line （for example， “x=2， y=1”）.C、 The program prints pairs of values for x and y that are always the same on the same line （for example， “x=1， y=1”. In addition， each value appears twice （for example， “x=1， y=1” followed by “x=1， y=1”）.D、 The program prints pairs of values for x and y that are always the same on the same line （for example， “x=1， y=1”. In addition， each value appears only for once （for example， “x=1， y=1” followed by “x=2， y=2”）.
Which statement is true regarding the INTERSECT operator?（）A、It ignores NULL values B、Reversing the order of the intersected tables alters the result C、The names of columns in all SELECT statements must be identical D、The number of columns and data types must be identical for all SELECT statements in the query
public class X implements Runnable （ private int x； private int y； public static void main（String args） （ X that = new X（）； （new Thread（that）） . start（ ）； （new Thread（that）） . start（ ）； ） public synchronized void run（ ） （ for （；；） （ x++； y++； System.out.printIn（“x = “ + x + “， y = “ + y）； ） ） ） What is the result？（）A、 An error at line 11 causes compilation to fail.B、 Errors at lines 7 and 8 cause compilation to fail.C、 The program prints pairs of values for x and y that might not always be the same on the same line （for example， “x=2， y=1”）D、 The program prints pairs of values for x and y that are always the same on the same line （forexample， “x=1， y=1”. In addition， each value appears twice （for example， “x=1， y=1” followed by “x=1， y=1”）E、 The program prints pairs of values for x and y that are always the same on the same line （for example， “x=1， y=1”. In addition， each value appears twice （for example， “x=1， y=1” followed by “x=2s， y=2”）
public class X implements Runnable（ private int x； private int y； public static void main（Stringargs） X that = new X（）； （new Thread（that））.start（）； （new Thread（that））.start（）； ） public void run（） （ for （；；） （ x++； y++； System.out.printIn（“x=” + x + “， y = ” + y）； ） ） What is the result？（） A、 Errors at lines 7 and 8 cause compilation to fail.B、 The program prints pairs of values for x and y that might not always be the same on the same line （for example， “x=2， y=1”）.C、 The program prints pairs of values for x and y that are always the same on the same line （for example， “x=1， y=1”. In addition， each value appears twice （for example， “x=1， y=1” followed by “x=1， y=1”）.D、 The program prints pairs of values for x and y that are always the same on the same line （for example， “x=1， y=1”. In addition， each value appears only for once （for example， “x=1， y=1” followed by “x=2， y=2”）.
Which statements are true concerning the effect of the and operators?（） A、For non-negative values of the left operand， the and operators will have the same effect.B、The result of （-1 1） is 0.C、The result of （-1 1） is -1.D、The value returned by will never be negative as long as the value of the right operand is equal to or greater than 1.E、When using the operator， the leftmost bit of the bit representation of the resulting value will always be the same bit value as the leftmost bit of the bit representation of the left operand.
A sequence was created with the DDL statement shown below:CREATE SEQUENCE my_seq START WITH 5 INCREMENT BY 5 CACHE 5 User1 successfully executes the following statements in Connection1: VALUES NEXT VALUE FOR my_seq INTO :con1hvar VALUES NEXT VALUE FOR my_seq INTO :con1hvar User2 successfully executes the following statement in Connection2: VALUES NEXT VALUE FOR my_seq INTO :con2hvar After User1 User2 are finished, User3 executes the following statement in Connection3: SELECT NEXT VALUE FOR my_seq FROM sysibm.sysdummy1Which value will be returned by the query?（）A、20B、25C、50D、55
Which two statements are true regarding the default behavior of the ORDER BY clause? （）A、Null values are left out of the sort.B、Character values are displayed from Z to AC、Date values are displayed with the earliest value first.D、Null values are displayed last for descending sequences.E、Numeric values are displayed with the lowest values first.
Which statement is true regarding subqueries?（）A、The LIKE operator cannot be used with single-row subqueries B、The NOT IN operator is equivalent to IS NULL with single-row subqueries C、=ANY and =ALL operators have the same functionality in multiple-row subqueries D、The NOT operator can be used with IN, ANY, and ALL operators in multiple-row subqueries
Which two statements are true regarding single row functions?（）A、They accept only a single argument B、They can be nested only to two levels C、Arguments can only be column values or constants D、They always return a single result row for every row of a queried table E、They can return a data type value different from the one that is referenced
多选题Given： 6. Which two successfully translate and result in a value of true？（）A${true or false}B${requestScope[foo][0] 500}C${requestScope[’foo’][1] = 420}D${（requestScope[’foo’][0] lt 50） （3 gt 2）}
多选题Which two statements are correct regarding default protocol preference values?（）AOSPF internal routes have a lower preference than static routes.BBoth direct and local routes have the same preference value.COSPF's preference value is lower than BGP.DOSPF has a single preference value for both internal and external routes.
多选题Which of the following statements are true regardinghashing？ （）AMD5 produces a 160-bit result.BSHA-256 is an extension to SHA-1 with a longer output.CMD5 takes more CPU cycles to compute than SHA-1.DChanging1 bit of the input to SHA-1 changes 1 bit of the output.ESHA-1 is stronger than MD5 because it can be used with a key to prevent modification.
多选题Which statements concerning the value of a member variable are true， when no explicit assignments have been made？（）AThe value of an int is undetermined.BThe value of all numeric types is zero.CThe compiler may issue an error if the variable is used before it is initialized.DThe value of a String variable is （empty string）.EThe value of all object variables is null.
多选题Which two statements are true regarding the default behavior of the ORDER BY clause? （）ANull values are left out of the sort.BCharacter values are displayed from Z to ACDate values are displayed with the earliest value first.DNull values are displayed last for descending sequences.ENumeric values are displayed with the lowest values first.
多选题Which two statements are correct regarding the default protocol preference values? （）ARIP is preferred over OSPF external routesBDirect, local and static routes have the same preference valueCOSPF's preference value is lower than BGPDOSPF has a single preference value for both internal and external routes
单选题What is true about sequences?（）AThe start value of the sequence is always 1.BA sequence always increments by 1.CThe minimum value of an ascending sequence defaults to 1.DThe maximum value of descending sequence defaults to 1.
多选题Which statements are true concerning NAT？ （）ANAT provides 1 to manyaddress mapping.BNAT provides 1 to 1 address mapping.CNAT is only useful forTCP/UDP and ICMP traffic.DNAT can be used for all IP traffic.
单选题Which statement is true regarding subqueries?（）AThe LIKE operator cannot be used with single-row subqueries BThe NOT IN operator is equivalent to IS NULL with single-row subqueries C=ANY and =ALL operators have the same functionality in multiple-row subqueries DThe NOT operator can be used with IN, ANY, and ALL operators in multiple-row subqueries
单选题Which statement is true regarding the INTERSECT operator?（）AIt ignores NULL values BReversing the order of the intersected tables alters the result CThe names of columns in all SELECT statements must be identical DThe number of columns and data types must be identical for all SELECT statements in the query
多选题Given: Which two statements are true about the result if the default locale is Locale.US?（）AThe value of b is 2.BThe value of a is 3.14.CThe value of b is 2.00.DThe value of a is 3.141.EThe value of a is 3.1415.FThe value of a is 3.1416.GThe value of b is 2.0000.
单选题public class X implements Runnable （ private int x； private int y； public static void main（String [] args） （ X that = new X（）； （new Thread（that）） . start（ ）； （new Thread（that）） . start（ ）； ） public synchronized void run（ ） （ for （；；） （ x++； y++； System.out.printIn（“x = “ + x + “， y = “ + y）； ） ） ） What is the result？（）A An error at line 11 causes compilation to fail.B Errors at lines 7 and 8 cause compilation to fail.C The program prints pairs of values for x and y that might not always be the same on the same line （for example， “x=2， y=1”）D The program prints pairs of values for x and y that are always the same on the same line （for example， “x=1， y=1”. In addition， each value appears twice （for example， “x=1， y=1” followed by “x=1， y=1”）E The program prints pairs of values for x and y that are always the same on the same line （for example， “x=1， y=1”. In addition， each value appears twice （for example， “x=1， y=1” followed by “x=2s， y=2”）
多选题Which two statements are true regarding the execution of the correlated subqueries？（）AThe nested query executes after the outer query returns the row.BThe nested query executes first and then the outer query executes.CThe outer query executes only once for the result returned by the inner query.DEach row returned by the outer query is evaluated for the results returned by the inner query.
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