To test whether an object belongs to a particular type, use

Consider the following code snippet: public static void sort(int[] a) { for (int i = 1; i < a.length; i++) { int next = a[i]; int j = i; while (j > 0 && a[j – 1] > next) { a[j] = a[j – 1]; j–; } a[j] = next; } } What sort algorithm is used in this code?

Complete the code fragment below, which is designed to throw an exception if String variable accountNumber has more than seven characters. if (accountNumber.length() > 7) { ___________________________________________ }

Which operations from the list data structure could be used to implement the push and pop operations of a stack data structure? I    addLast II   addFirst III  removeFirst

Which operations from the list data structure could be used to implement the push and pop operations of a stack data structure? I    addLast II   addFirst III  removeFirst

Using the merge method of the Map interface, which statement correctly updates the salesTotalByDept map of type Map to update the sales total for a dept by an integer sales value?

When reading words using a Scanner object’s next method, ____.

Consider the following code snippet: public class Vehicle { protected int numberAxles; . . . } Which statement is true about the accessibility of data in the numberAxles variable?

Which of the following statements about the TreeSet class is NOT correct?

Consider the scope of the three objects menuLabel, mi, and the anonymous object new MyMenuListener() within the JmenuItem class. How do thier lifetimes compare? public JMenuItem makeMenuItem(final String menuLabel) { JMenuItem mi = new JMenuItem(menuLabel); class MyMenuListener implements ActionListener { public void actionPerformed(ActionEvent e) { doSomethingElse(); System.out.println(menuLabel); } } mi.addActionListener(new MyMenuListener()); return mi; }