You can assign ___ to a variable of Object[] type.
A. new char[100]
B. new int[100]
C. new double[100]
D. new String[100]
E. new java.util.Date[100]
The correct answer is DE
Explanation: Primitive data type array is not compatible with Object[].
Java
- In Java, the mechanism that allows you to combine data and operations on the data into a single unit is called a(n)
- Which of the following is a legal way to declare and instantiate an array of 10 Strings?
- The statement System.out.println(values[7]); will
- Which of the following loops would adequately add 1 to each element stored in values?
- What is the value of values.length?
- What is returned by values[3]?
- A listener is an object that
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- In order to have some code throw an exception, you would use which of the following reserved words?
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- A Java program can handle an exception in several different ways. Which of the following is not a way that a Java program could handle an exception?
- Assume that you are defining a class and you want to implement an ActionListener. You state addActionListener(this); in your class’ constructor. What does this mean?
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- Which of the following interfaces would be used to implement a class that represents a group (or collection) of objects?
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- Static methods cannot
- Which of the following methods is a static method? The class in which the method is defined is given in parentheses following the method name.
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- The return statement must be followed a single variable that contains the value to be returned.