单项选择题
A. An exception is thrown at runtime.
B. Pi is approximately 3.
C. Pi is approximately 3.141593.
D. Compilation fails.
单项选择题 Given: 11. String test = "This is a test"; 12. String[] tokens = test.split("\s"); 13. System.out.println(tokens.length); What is the result?()
单项选择题 Given: 11. public void genNumbers() { 12. ArrayList numbers = new ArrayList(); 13. for (int i=0; i<10; i++) { 14. int value = i * ((int) Math.random()); 15. Integer intObj = new Integer(value); 16. numbers.add(intObj); 17. } 18. System.out.println(numbers); 19. } Which line of code marks the earliest point that an object referenced by intObj becomes a candidate for garbage collection?()
多项选择题 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?()