当前分类： OCJP(310-065)
问题：单选题Click the Exhibit button. What is the result？（）A Line 26 prints "a" to System.out.B Line 26 prints "b" to System.out.C An exception is thrown at line 26 at runtime.D Compilation of class A will fail due to an error in line 6....
查看答案
问题：单选题Given： What is the result？（）A test endB Compilation fails.C test runtime endD test exception endE A Throwable is thrown by main at runtime....
问题：单选题Given： Which command-line invocations will compile？（）A javac Mule.javaB javac -source 1.3 Mule.javaC javac -source 1.4 Mule.javaD javac -source 1.5 Mule.java...
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 "sleep".D The code executes normally， but nothing is printed....
问题：单选题Given： What is the result？（）A Compilation fails due to an error in line 23.B Compilation fails due to an error in line 29.C A ClassCastException occurs in line 29.D A ClassCastException occurs in line 31.E The value of all four objects prints in ...
问题：单选题Given： What is the result？（）A X， followed by an Exception.B No output， and an Exception is thrown.C Compilation fails due to an error on line 14.D Compilation fails due to an error on line 16.E Compilation fails due to an error on line 17....
问题：单选题Given： String[] elements = { "for"， "tea"， "too" }； String first = （elements.length 0） ？ elements[0] ： null； What is the result？（）A Compilation fails.B An exception is thrown at runtime.C The variable first is set to null.D The variable first is set t...
问题：单选题Given： Which code， inserted at line 14， allows the Sprite class to compile？（）A Direction d = NORTH；B Nav.Direction d = NORTH；C Direction d = Direction.NORTH；D Nav.Direction d = Nav.Direction.NORTH；...
问题：多选题Given： Which four code fragments， inserted independently at line 7， will compile？（）Apublic void m1（） { }Bprotected void m1（） { }Cprivate void m1（） { }Dvoid m2（） { }Epublic void m2（） { }Fprotected void m2（） { }...
问题：单选题Given： 22.StringBuilder sb1 = new StringBuilder（"123"）； 23.String s1 = "123"； 24.// insert code here 25.System.out.println（sb1 + " " + s1）； Which code fragment， inserted at line 24， outputs "123abc 123abc"？（）A sb1.append（abc）； s1.append（abc）；B sb1.appe...
问题：单选题Given： What is the result？（）A 2.1.0B 2.1.1C 3.2.1D 3.2.2...
问题：单选题Given： What is the result？（）A BB The code runs with no output.C Compilation fails because of an error in line 12.D Compilation fails because of an error in line 15.E Compilation fails because of an error in line 18....
问题：单选题Given： Which statement is true？（）A Compilation fails because the hashCode method is not overridden.B A HashSet could contain multiple Person objects with the same name.C All Person objects will have the same hash code because the hashCode method is...
问题：单选题Which Man clsss properly represents the relationship "Man has a best friend who is a Dog"？（）A class Man extends Dog { }B class Man implements Dog { }C class Man { private BestFriend dog； }D class Man { private Dog bestFriend； }E class Man { private Dog...
问题：多选题Given： Which two statements are true？（）AThe output could be 8-1 7-2 8-2 7-1BThe output could be 7-1 7-2 8-1 6-1CThe output could be 8-1 7-1 7-2 8-2DThe output could be 8-1 8-2 7-1 7-2...
问题：单选题Given： 11.double input = 314159.26； 12.NumberFormat nf = NumberFormat.getInstance（Locale.ITALIAN）； 13.String b； 14.//insert code here Which code， inserted at line 14， sets the value of b to 314.159，26？（）A b = nf.parse（ input ）；B b = nf.format（ input ）；...
问题：多选题Given： 35.String #name = "Jane Doe"； 36.int $age = 24； 37.Double _height = 123.5； 38.double ~temp = 37.5； Which two statements are true？（）ALine 35 will not compile.BLine 36 will not compile.CLine 37 will not compile.DLine 38 will not compile....
问题：单选题Which can appropriately be thrown by a programmer using Java SE technology to create a desktop application？（）A ClassCastExceptionB NullPointerExceptionC NoClassDefFoundErrorD NumberFormatExceptionE ArrayIndexOutOfBoundsException...
