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By Mughal K. A., Rasmussen R.

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8, p. 113). A variable stores values of datatypes. A variable has a name, a type, a particular size and a value associated with it. 30 CHAPTER 2: LANGUAGE FUNDAMENTALS A variable declaration, in its simplest form, can be used to specify the name and the type of variables. This implicitly determines their size and the values that can be stored in them. char a, b, c; double area; boolean flag; // a, b and c are character variables. // area is a floating-point variable. // flag is a boolean variable.

In which of these variable declarations will the variable remain uninitialized unless explicitly initialized? Select all valid answers. (a) (b) (c) (d) (e) Declaration of an instance variable of type int. Declaration of a static class variable of type float. Declaration of a local variable of type float. Declaration of a static class variable of type Object. Declaration of an instance variable of type int[].

1) // (2) // (3) In (1), the tab character is specified using the escape sequence and the Unicode value respectively. In (2), the single apostrophe need not be escaped in strings, but it would be if specified as a character literal('\''). In (3), the double apostrophes in the string must be escaped. Printing these strings would give the following result: Here comes a tab. And here comes another one What's on the menu? " ! White Spaces A white space is a sequence of spaces, tabs, form feeds and line terminator characters.

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A Programmer's Guide to Java Certification: A Comprehensive Primer by Mughal K. A., Rasmussen R.


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