Answer: array element value : Questions « Java Source And Data Type « SCJP

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SCJP » Java Source And Data Type » Questions

1.30.22.Answer: array element value

The correct answer is b. 



All arrays of reference type variables such as String are initialized to the special null value.





public class MainClass{

    public static void main(String[] argv){

        String[] types = new String[ 20 ] ;

        System.out.println(type[0]);

    }

}

1.30.Questions
	1.30.1.	What is the output from the following code(array index)?
	1.30.2.	Answer: array index
	1.30.3.	Which of the following are true about this method declaration?
	1.30.4.	Answer: method declaration
	1.30.5.	Which of the following are true about this variable declaration?
	1.30.6.	Answer: variable declaration
	1.30.7.	What is the output from the following program?
	1.30.8.	Answer: static method and instance variable
	1.30.9.	What will be the result of trying to compile and run the following code?
	1.30.10.	Answer: main method
	1.30.11.	Select the correct command line to execute the program and produce "The word is gamma" as the output line.
	1.30.12.	Answer: main method parameter passin
	1.30.13.	Which of the following are not reserved words in Java?
	1.30.14.	Answer: reserved words in Java
	1.30.15.	What is the range of values that can be stored in a byte primitive variable?
	1.30.16.	Answer: range of values of a byte primitive variable
	1.30.17.	What is the range of values that can be stored in a long primitive?
	1.30.18.	Answer: range value for long primitive
	1.30.19.	Which of the following would be illegal identifiers for a Java variable?
	1.30.20.	Answer: identifiers for a Java variable
	1.30.21.	After the following code has been executed, what is the value of types[0]?
	1.30.22.	Answer: array element value
	1.30.23.	Which of the following class declarations are not correct Java declarations?
	1.30.24.	Answer: synchronized declaration
	1.30.25.	Which of the following declaration sets the proper access for MyAccess class in yourpackage package to not allow subclass?
	1.30.26.	Answer: package and subclass
	1.30.27.	what is/are true about the widgetCount variable?
	1.30.28.	Answer: static variable
	1.30.29.	File Derived.java contains the following classes, what will happen when this file is compiled?
	1.30.30.	Answer: derived class
	1.30.31.	What happens when you try to use multiple Widget objects in multiple Threads?
	1.30.32.	Answer: static variable(2)

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