Suppose an ArrayList list contains {"red", "green", "red", "green"}. What is list after the following code?
list.remove("red");
A. {"red", "green", "red", "green"}
B. {"green", "red", "green"}
C. {"green", "green"}
D. {"red", "green", "green"}
The correct answer is B
Java
- In Java, the mechanism that allows you to combine data and operations on the data into a single unit is called a(n)
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- The statement System.out.println(values[7]); will
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- 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?
- An exception can produce a “call stack trace” which lists
- 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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- An object that refers to part of itself within its own methods can use which of the following reserved words to denote this relationship?
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- A method defined without a return statement will cause a compile error.
- If a method takes a double as a parameter, you could pass it an int as the actual parameter.
- The different versions of an overloaded method are differentiated by their signatures.
- The number and types of the actual parameters must match the number and types of the formal parameters.
- The return statement must be followed a single variable that contains the value to be returned.