1. class Calc { 2. public static void main（String [] args） { 3. try { 4. int x = Integer.parseInt（"42a"）； 5. //insert code here 6. System.out.print（"oops "）； 7. } 8. } 9. } 下面哪两行分别插入到第五行，会导致输出“oops”？（）A、} catch （ClassCastException c） {B、} catch （IllegalStateException c） {C、} catch （NumberFormatException n） {D、} catch （IllegalArgumentException e） {
1. class Calc { 2. public static void main（String [] args） { 3. try { 4. int x = Integer.parseInt（"42a"）； 5. //insert code here 6. System.out.print（"oops "）； 7. } 8. } 9. } 下面哪两行分别插入到第五行，会导致输出“oops”？（）
- A、} catch （ClassCastException c） {
- B、} catch （IllegalStateException c） {
- C、} catch （NumberFormatException n） {
- D、} catch （IllegalArgumentException e） {
相关考题：
1． Everyone in our class ________ ．A． like singingB． likes play footballC． like watch TVD． likes playing games
Inyourproductiondatabasethereisajob，CALC_STAT，whichhasbeenscheduledtoruneveryFridayat5：00p.m.CALC_STATupdatestheoptimizerstatisticsfortheobjectsownedbytheAPPSschema.Youwantthetasktobegeneric，therebyallowinguserstomodifytheattributesofthetaskatruntimewithoutaffectingtheoriginaltask.WhichcomponentofOracleSchedulermustyoudefinetoachievethis？（）A.WindowB.ProgramC.JobclassD.Windowgroup
Evaluate this SQL statement:SELECT e.employee_id, (.15* e.salary) + (.5 * e.commission_pct) + (s.sales amount * (.35 * e.bonus)) AS CALC_VALUEFROM employees e, sales sWHERE e.employee_id = s.emp_id;What will happen if you remove all the parentheses from the calculation? （）A. The value displayed in the CALC_VALUE column will be lower.B. The value displayed in the CALC_VALUE column will be higher.C. There will be no difference in the value displayed in the CALC_VALUE column.D. An error will be reported.
Evaluate this SQL statement:What will happen if you remove all the parentheses from the calculation?() A. The value displayed in the CALC_VALUE column will be lower.B. The value displayed in the CALC_VALUE column will be higher.C. There will be no difference in the value displayed in the CALC_VALUE column.D. An error will be reported.
YouworkasadatabaseadministratoratCertkiller.com.Inyourproductiondatabasethereisajob，CALC_STAT，whichhasbeenscheduledtoruneveryFridayat5.00p.m.CALC_STATupdatestheoptimizerstatisticsfortheobjectsownedbytheAPPSschema.Youwantthetasktobegeneric，therebyallowinguserstomodifytheattributesofthetaskatruntimewithoutaffectingtheoriginaltask.WhichcomponentofOracleSchedulermustyoudefinetoachievethis？（）A.WindowB.ProgramC.JobclassD.Windowgroup
int Calc(unsigned int x){int count=0;while(x){printf("x=%i\n",x);count++;x=x(x-1);}return count;}问 Calc(9999)的值是多少。
1. public class Target { 2. private int i = 0； 3. public int addOne（） { 4. return ++i； 5. } 6. } And： 1. public class Client { 2. public static void main（String[] args） { 3. System.out.println（new Target（）.addOne（））； 4. } 5. } Which change can you make to Target without affecting Client？（） A、 Line 4 of class Target can be changed to return i++；B、 Line 2 of class Target can be changed to private int i = 1；C、 Line 3 of class Target can be changed to private int addOne（） {D、 Line 2 of class Target can be changed to private Integer i = 0；
1. public interface A { 2. public void doSomething（String thing）； 3. } 1. public class AImpl implements A { 2. public void doSomething（String msg） { } 3. } 1. public class B { 2. public A doit（） { 3. // more code here 4. } 5. 6. public String execute（） { 7. // more code here 8. } 9. } 1. public class C extends B { 2. public AImpl doit（） { 3. // more code here 4. } 5. 6. public Object execute（） { 7. // more code here 8. } 9. } Which statement is true about the classes and interfaces in the exhibit？（） A、 Compilation will succeed for all classes and interfaces.B、 Compilation of class C will fail because of an error in line 2.C、 Compilation of class C will fail because of an error in line 6.D、 Compilation of class AImpl will fail because of an error in line 2.
Class TestException 1. public class TestException extends Exception { 2. } Class a： 1. public class a { 2. 3. public String sayHello（String name） throws TestException { 4. 5. if（name == null） { 6. throw new TestException（）； 7. } 8. 9. return “Hello “+ name； 10. } 11. 12. } A programmer wants to use this code in an application： 45. A a=new A（）； 46. System.out.println（a.sayHello（”John”））； Which two are true？（）A、 Class a will not compile.B、 Line 46 can throw the unchecked exception TestException.C、 Line 45 can throw the unchecked exception TestException.D、 Line 46 will compile if the enclosing method throws a TestException.E、 Line 46 will compile if enclosed in a try block， where TestException is caught.
1. public class a { 2. public void method1（） { 3. try { 4. B b=new b（）； 5. b.method2（）； 6. // more code here 7. } catch （TestException te） { 8. throw new RuntimeException（te）； 9. } 10. } 11. } 1. public class b { 2. public void method2（） throws TestException { 3. // more code here 4. } 5. } 1. public class TestException extends Exception { 2. } Given： 31. public void method（） { 32. A a=new a（）； 33. a.method1（）； 34. } Which is true if a TestException is thrown on line 3 of class b？（）A、 Line 33 must be called within a try block.B、 The exception thrown by method1 in class a is not required to be caught.C、 The method declared on line 31 must be declared to throw a RuntimeException.D、 On line 5 of class a， the call to method2 of class b does not need to be placed in a try/catch block.
1. public class A { 2. void A（） { 3. System.out.println（“Class A”）； 4. } 5. public static void main（String[] args） { 6. new A（）； 7. } 8. } What is the result？（） A、 Class AB、 Compilation fails.C、 An exception is thrown at line 2.D、 An exception is thrown at line 6.E、 The code executes with no output.
现自： 1． interface Color { } 2. interface Weight { } 3． //insert code here 和以下足六个声明： class Boat extends Color， extends Weight { } class Boat extends Color and Weight { } class Boat extends Color， Weight { } class Boat implements Color， implements Weight { } class Boat implements Color and Weight { } class Boat implements Color， Weight { } 分别插入到第3行，有多少行可以编译？ （） A、 0B、 1C、 2D、 3
1. public class enclosingone （ 2. public class insideone{} 3. ） 4. public class inertest（ 5. public static void main （string[]args）（ 6. enclosingone eo= new enclosingone （）； 7. //insert code here 8. ） 9. ） Which statement at line 7 constructs an instance of the inner class？（） A、 InsideOnew ei= eo.new InsideOn（）；B、 Eo.InsideOne ei = eo.new InsideOne（）；C、 InsideOne ei = EnclosingOne.new InsideOne（）；D、 EnclosingOne.InsideOne ei = eo.new InsideOne（）；
单选题以下程序的功能是：通过调用calc函数，把所求得的两数之和值放入变量add中，并在主函数中输出。#includevoidcalc(floatx,floaty,float*sum){ ______=x+y;}main(){ floatx,y,add; scanf(%f%f,x,y); calc(x,y,add); printf(x+y=%f,add);}calc函数中下划线处应填入的是（ ）。A*sumBsumCsumDadd
单选题Evaluate this SQL statement: SELECT e.employee_id, (.15* e.salary) + (.5 * e.commission_pct) + (s.sales_amount * (.35 * e.bonus)) AS CALC_VALUE FROM employees e, sales s WHERE e.employee_id = s.emp_id; What will happen if you remove all the parentheses from the calculation?（）AThe value displayed in the CALC_VALUE column will be lower.BThe value displayed in the CALC_VALUE column will be higher.CThere will be no difference in the value displayed in the CALC_VALUE column.DAn error will be reported.
多选题1. class Calc { 2. public static void main（String [] args） { 3. try { 4. int x = Integer.parseInt（"42a"）； 5. //insert code here 6. System.out.print（"oops "）； 7. } 8. } 9. } 下面哪两行分别插入到第五行，会导致输出“oops”？（）A} catch （ClassCastException c） {B} catch （IllegalStateException c） {C} catch （NumberFormatException n） {D} catch （IllegalArgumentException e） {
单选题现有： 1. interface Animal { 2. void eat（）； 3. } 4. 5. // insert code here 6. 7. public class HouseCat extends Feline { 8. public void eat（） { } 9. } 和五个声明： abstract class Feline implements Animal { } abstract class Feline implements Animal { void eat（）； } abstract class Feline implements Animal { public void eat（）； } abstract class Feline implements Animal { public void eat（） { } } abstract class Feline implements Animal { abstract public void eat（）； } 分别插入到第5行，有几个可以通过编译？（）A0B1C2D3
单选题1. public class a { 2. public void method1（） { 3. try { 4. B b=new b（）； 5. b.method2（）； 6. // more code here 7. } catch （TestException te） { 8. throw new RuntimeException（te）； 9. } 10. } 11. } 1. public class b { 2. public void method2（） throws TestException { 3. // more code here 4. } 5. } 1. public class TestException extends Exception { 2. } Given： 31. public void method（） { 32. A a=new a（）； 33. a.method1（）； 34. } Which is true if a TestException is thrown on line 3 of class b？（）A Line 33 must be called within a try block.B The exception thrown by method1 in class a is not required to be caught.C The method declared on line 31 must be declared to throw a RuntimeException.D On line 5 of class a， the call to method2 of class b does not need to be placed in a try/catch block.
多选题1. public class OuterClass { 2. private double d1 = 1.0； 3. // insert code here 4. } Which two are valid if inserted at line 3？（）Astatic class InnerOne { public double methoda（） { return d1； } }Bstatic class InnerOne { static double methoda（） { return d1； } }Cprivate class InnerOne { public double methoda（） { return d1； } }Dprotected class InnerOne { static double methoda（） { return d1； } }Epublic abstract class InnerOne { public abstract double methoda（）； }
单选题Evaluate this SQL statement: SELECT e.employee_id, (.15* e.salary) + (.5 * e.commission_pct) + (s.sales amount * (.35 * e.bonus)) AS CALC_VALUE FROM employees e, sales s WHERE e.employee_id = s.emp_id; What will happen if you remove all the parentheses from the calculation? （）AThe value displayed in the CALC_VALUE column will be lower.BThe value displayed in the CALC_VALUE column will be higher.CThere will be no difference in the value displayed in the CALC_VALUE column.DAn error will be reported.
多选题1. public class A { 2. public void method1（） { 3. B b=new B（）； 4. b.method2（）； 5. // more code here 6. } 7. } 1. public class B { 2. public void method2（） { 3.C c=new C（）； 4. c.method3（）； 5. // more code here 6. } 7. } 1. public class C { 2. public void method3（） { 3. // more code here 4. } 5. } Given： 25. try { 26. A a=new A（）； 27. a.method1（）； 28. } catch （Exception e） { 29. System.out.print（”an error occurred”）； 30. } Which two are true if a NullPointerException is thrown on line 3 of class C？（）AThe application will crash.BThe code on line 29 will be executed.CThe code on line 5 of class A will execute.DThe code on line 5 of class B will execute.EThe exception will be propagated back to line 27.
单选题1. public class A { 2. void A（） { 3. System.out.println（“Class A”）； 4. } 5. public static void main（String[] args） { 6. new A（）； 7. } 8. } What is the result？（）A Class AB Compilation fails.C An exception is thrown at line 2.D An exception is thrown at line 6.E The code executes with no output.
单选题In a class of 160 seniors, the ratio of boys to girls is 3 to 5. In the junior class, the ratio of boys to girls is 3 to 2. When the two classes are combined, the ratio of boys to girls is 1 to 1. How many students are in the junior class?A400B360C200D180E160
单选题Given a class Repetition： 1. package utils； 2. 3. public class Repetition { 4. public static String twice（String s） { return s + s； } 5. } and given another class Demo： 1. // insert code here 2. 3. public class Demo { 4. public static void main（String[] args） { 5. System.out.println（twice（”pizza”））； 6. } 7. } Which code should be inserted at line 1 of Demo.java to compile and run Demo to print“pizzapizza”？（）A import utils.*；B static import utils.*；C import utils.Repetition.*；D static import utils.Repetition. *；E import utils.Repetition.twice（）；F import static utils.Repetition.twice；G static import utils.Repetition.twice；
单选题Evaluate this SQL statement: What will happen if you remove all the parentheses from the calculation?（）A The value displayed in the CALC_VALUE column will be lower.B The value displayed in the CALC_VALUE column will be higher.C There will be no difference in the value displayed in the CALC_VALUE column.D An error will be reported.