A(73)is a value that never changes, for example: the value of Pi(approximately 3.14).A．variableB．stringC．BooleanD．constant
A(73)is a value that never changes, for example: the value of Pi(approximately 3.14).
A．variable
B．string
C．Boolean
D．constant
相关考题：
下列运算符函数中，肯定不属于类Value的成员函数的是( )。A．Value operator+(Value)；B．Value operator-(Value，Value)；C．Value operator*(int)；D．Value operator/(Value)；
以下插入记录正确的( )A.insert into emp(ename,hiredate,sal) values (value1,value2,value3);B.insert into emp (ename,sal)values(value1,value2,value3);C.insert into emp (ename)values(value1,value2,value3);D.insert into emp (ename,hiredate,sal)values(value1,value2);
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.
已知Value是一个类，value是Value的一个对象。下列以非成员函数形式重载的运算符函数原型中，正确的是A．Value operator+(Value v, int i)；B．Value operator+(Value v＝value, int i)；C．Value operator+(Value v, int i＝0)；D．Value operator+(Value v=value, int i=0)；
What type of constraint can be used to ensure that, in any given row in a table, the value of one column never exceeds the value of another column?() A.CheckB.RangeC.ReferentialD.Informational
With respect to program variables,（73)means assigning a beginning value to a variablA.B.SetupC.startupD.initializationE.pre-compile
Which 4 statements regarding MPLS Label Stack Encoding is true？（）A、A value of 4 represents the "Implicit NULL Label."B、A value of 0 represents the "IPv4 Explicit NULL Label."C、A value of 1 represents the "Router Alert Label". The use of this label is analogous to the use of the"Router Alert Option" in IP packets （for example， ping with record route option）D、A value of 2 represents the "IPv6 Explicit NULL Label"E、A value of 1 represents the "IPv1 Explicit NULL Label"F、A value of 3 represents the "Implicit NULL Label"
Which of the following is a characteristic of a sequence?（）A、A sequence will never generate duplicate valuesB、The MAXVALUE of a sequence can be equal to the MINVALUEC、It is not possible to create a sequence that generates a constant since the INCREMENT value must be greater than zeroD、When a sequence cycles back to either the MAXVALUE or MINVALUE, it will always be equal to the specified value of either of these two boundaries
对于在代码中经常要用到的且不会改变的值，可以将其声明为常量。如圆周率PI始终为3.14。现在要声明一个名为PI的圆周率常量，下面哪段代码是正确的（）。A、const float PI；PI=3.14f；B、const float PI=3.14f；C、float const PI；PI=3.14f；D、float const PI=3.14f；
System.out.format（”Pi is approximately %d.”， Math.PI）； What is the result？（） A、 Compilation fails.B、 Pi is approximately 3.C、 Pi is approximately 3.141593.D、 An exception is thrown at runtime.
NumberFormat nf= NumberFormat.getInstance（）； nf.setMaximumFractionDigits（4）； nf.setMinimumFractionDigits（2）； String a = nf.format（3.1415926）； String b = nf.format（2）； Which two 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.
11. public void someMethod（Object value） { 12. // check for null value .... 20. System.out.println（value.getClass（））； 21. } What， inserted at line 12， is the appropriate way to handle a null value？（） A、 assert value == null；B、 assert value !null， “value is null”；C、 if （value == null） { throw new AssertionException（”value is null”）；D、 if （value == null） { throw new IllegalArgumentException（”value is null”）；
Given： 12. NumberFormat nf = NumberFormat.getInstance（）； 13. nf.setMaximumFractionDigits（4）； 14. nf.setMinimumFractionDigits（2）； 15. String a = nf.format（3.1415926）； 16. String b = nf.format（2）； Which two statements are true about the result if the default locale is Locale.US？（）A、 The value of b is 2.00.B、 The value of a is 3.141.C、 The value of a is 3.14.D、 The value of b is 2.0000.E、 The value of a is 3.1415.F、 The value of a is 3.1416.G、 The value of b is 2.
单选题Which of the following is a characteristic of a sequence?（）AA sequence will never generate duplicate valuesBThe MAXVALUE of a sequence can be equal to the MINVALUECIt is not possible to create a sequence that generates a constant since the INCREMENT value must be greater than zeroDWhen a sequence cycles back to either the MAXVALUE or MINVALUE, it will always be equal to the specified value of either of these two boundaries
单选题11. public void someMethod（Object value） { 12. // check for null value .... 20. System.out.println（value.getClass（））； 21. } What， inserted at line 12， is the appropriate way to handle a null value？（）A assert value == null；B assert value !null， “value is null”；C if （value == null） { throw new AssertionException（”value is null”）；D if （value == null） { throw new IllegalArgumentException（”value is null”）；
多选题Given： 12. NumberFormat nf = NumberFormat.getInstance（）； 13. nf.setMaximumFractionDigits（4）； 14. nf.setMinimumFractionDigits（2）； 15. String a = nf.format（3.1415926）； 16. String b = nf.format（2）； Which two statements are true about the result if the default locale is Locale.US？（）AThe value of b is 2.00.BThe value of a is 3.141.CThe value of a is 3.14.DThe value of b is 2.0000.EThe value of a is 3.1415.FThe value of a is 3.1416.GThe value of b is 2.
单选题Given： 12. System.out.format（"Pi is approximately %d."， Math.PI）； What is the result？（）A An exception is thrown at runtime.B Pi is approximately 3.C Pi is approximately 3.141593.D Compilation fails.
单选题The Total Base Number (TBN) value of diesel engine lube oil refers to its ability to （）Aresist changes in viscosity with changes in temperatureBresist emulsificationCneutralize acidsDresist oxidation at high temperatures
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.
单选题What type of constraint can be used to ensure that, in any given row in a table, the value of one column never exceeds the value of another column?（）ACheckBRangeCReferentialDInformational
单选题System.out.format（”Pi is approximately %d.”， Math.PI）； What is the result？（）A Compilation fails.B Pi is approximately 3.C Pi is approximately 3.141593.D An exception is thrown at runtime.
单选题Two database users, Jack and Bill, are accessing the SupportCenter STAFF table of the SupportCenter DB database. When Jack modifies a value in the table, the new value is invisible to Bill. Which is the modified value invisible to Bill?（）AThe modified data are not available on disk.BThe modified data have been flushed out from memory.CThe modified rows of the SupportCenter STAFF table have been locked.DJack has not committed the changes after modifying the value.EBoth users are accessing the database from two different machines.
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.
多选题Which 4 statements regarding MPLS Label Stack Encoding is true？（）AA value of 4 represents the Implicit NULL Label.BA value of 0 represents the IPv4 Explicit NULL Label.CA value of 1 represents the Router Alert Label. The use of this label is analogous to the use of theRouter Alert Option in IP packets （for example， ping with record route option）DA value of 2 represents the IPv6 Explicit NULL LabelEA value of 1 represents the IPv1 Explicit NULL LabelFA value of 3 represents the Implicit NULL Label
多选题NumberFormat nf= NumberFormat.getInstance（）； nf.setMaximumFractionDigits（4）； nf.setMinimumFractionDigits（2）； String a = nf.format（3.1415926）； String b = nf.format（2）； Which two 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.
填空题Let f(x) be defined as the absolute value of the difference between the smallest and largest odd factors of x greater than 1. For example, f(42)＝︱3-21︱＝18. What is the value of f(90)?____