当前分类： 1z0-851
问题：单选题A programmer has an algorithm that requires a java.util.List that provides an efficient implementation of add(0, object), but does NOT need to support quick random access. What supports these requirements?（）A java.util.QueueB java.util.ArrayListC java....
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问题：多选题Which three statements are true?（）AA final method in class X can be abstract if and only if X is abstract.BA protected method in class X can be overridden by any subclass of X.CA private static method can be called only within other static methods in c...
问题：多选题Given: Which three are valid?（）Ap0 = p1;Bp1 = p2;Cp2 = p4;Dp2 = (ClassC)p1;Ep1 = (ClassB)p3;Fp2 = (ClassC)p4;...
问题：单选题Given: What is the result?（）A Compilation fails.B An exception is thrown at runtime.C The code executes normally and prints "bar".D The code executes normally, but nothing prints....
问题：多选题A developer is creating a class Book, that needs to access class Paper. The Paper class is deployed in a JAR named myLib.jar. Which three, taken independently, will allow the developer to use the Paper class while compiling the Book class?（）AThe JAR fi...
问题：多选题Click the Exhibit button. Which three code fragments, added individually at line 29, produce the output 100?（）An = 100;Bi.setX( 100 );Co.getY().setX( 100 );Di = new Inner(); i.setX( 100 );Eo.setY( i ); i = new Inner(); i.setX( 100 );Fi = new Inner(); i...
问题：多选题Which two scenarios are NOT safe to replace a StringBuffer object with a StringBuilder object?（）AWhen using versions of Java technology earlier than 5.0.BWhen sharing a StringBuffer among multiple threads.CWhen using the java.io class StringBufferInput...
问题：单选题Given: What is the result?（）A HelloB Hello WorldC Compilation fails.D Hello World 5E The code runs with no output.F An exception is thrown at runtime....
问题：单选题Given that t1 is a reference to a live thread, which is true?（）A The Thread.sleep() method can take t1 as an argument.B The Object.notify() method can take t1 as an argument.C The Thread.yield() method can take t1 as an argument.D The Thread.setPriorit...
问题：单选题Given: What is the result?（）A Compilation fails.B exception is thrown at runtime.C The attribute id in the ItemTest object remains unchanged.D The attribute id in the ItemTest object is modified to the new value.E A new ItemTest object is created...
问题：单选题Given: What is the result?（）A 7B 49C 343D Compilation fails.E An exception is thrown at runtime....
问题：单选题Given: What is the result?（）A 2B 24C 234D 246E 2346F Compilation fails....
问题：单选题Given: What is the output?（）A 42B 420C 462D 42042E Compilation fails.F An exception is thrown at runtime....
问题：单选题Given: What is the result?（）A 2B 3C 12D 23E 123F Compilation fails.G An exception is thrown at runtime....
问题：单选题Given: What is the result?（）A 1B 2C 12D Compilation fails.E No output is produced.F An exception is thrown at runtime....
