问题: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 resul...
Sunday, March 17, 2024
Wednesday, March 27, 2024
问题:单选题Given: 11. public void genNumbers() { 12. ArrayList numbers = new ArrayList(); 13. for (int i=0; i10; i++) { 14. int value = i * ((int) Math.random()); 15. Integer intObj = new Integer(value); 16. numbers.add(intObj); 17. } 18. System.out...
问题:单选题Given: 11. static class A { 12. void process() throws Exception { throw new Exception(); } 13. } 14. static class B extends A { 15. void process() { System.out.println("B "); } 16. } 17. public static void main(String[] args) { 18. A a ...
问题:多选题A JavaBeans component has the following field: 11. private boolean enabled; Which two pairs of method declarations follow the JavaBeans standard for accessing this field?()AABBCCDD...
问题:多选题Given: Which five methods, inserted independently at line 5, will compile?()Aprotected int blipvert(long x) { return 0; }Bprotected long blipvert(int x) { return 0; }Cprivate int blipvert(long x) { return 0; }Dprivate int blipvert(int x) { return 0; }E...
问题:单选题Given: Which statement is true?()A The cardID and limit variables break polymorphism.B The code demonstrates polymorphism.C The ownerName variable breaks encapsulation.D The setCardInformation method breaks encapsulation.E The class is fully ...
问题:单选题Click the Exhibit button. What is the output of the program shown in the exhibit? ()A 300-300-100-100-100B 300-300-300-100-100C 300-300-300-300-100D 300-100-100-100-100...
问题:单选题Given: What is the result?()A If you define D e = new E(), then e.bMethod() invokes the version of bMethod() defined in Line 5.B If you define D e = (D)(new E()), then e.bMethod() invokes the version of bMethod() defined in Line 5.C Compilation...
问题:单选题Given: 11. public static void main(String[] args) { 12. Object obj = new int[] { 1, 2, 3 }; 13. int[] someArray = (int[])obj; 14. for (int i : someArray) System.out.print(i + " "); 15. } What is the result? ()A Compilation fails because of...
问题: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....
问题:单选题Given: What is the result? ()A A new Item object is created with the preferred value in the id attribute.B The attribute id in the Item object is modified to the new value.C Compilation fails.D An exception is thrown at runtime.E The attribut...
问题:多选题Which two code fragments correctly create and initialize a static array of int elements?()AABBCCDD...
Tuesday, January 16, 2024
问题:单选题Given the command line java Pass2 and: What is the result? ()A doStuff x = 6 main x = 6B Compilation fails.C doStuff x = 6 main x = 7D An exception is thrown at runtime.E doStuff x = 7 main x = 6F doStuff x = 7 main x = 7...
问题:单选题Given: What is the result?()A An exception is thrown at runtime.B r, e, o,C Compilation fails.D r, t, t,...