问题:多选题Given: 10. class One { 11. void foo() { } 12. } 13. class Two extends One { 14. //insert method here 15. } Which three methods, inserted individually at line 14, will correctly complete class Two?()Apublic void foo() { /* more code here *...
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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: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: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Which two code fragments correctly create and initialize a static array of int elements?()AABBCCDD...
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: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...
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,...
问题:单选题Click the Exhibit button. Given: ClassA a = new ClassA(); a.methodA(); What is the result?()A The code runs with no output.B Compilation fails.C An exception is thrown at runtime.D ClassC is displayed....
问题:单选题Click the Exhibit button. Given this code from Class B: 25. A a1 = new A(); 26. A a2 = new A(); 27. A a3 = new A(); 28. System.out.println(A.getInstanceCount()); What is the result?()A Compilation of class A fails.B Line 28 prints the v...
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...