Java The Complete Reference, Seventh Edition

terminates. Theiterationexpression determines how the loop control variable is changed each time the loop iterates. Here is a sh ...

Chapter 2: An Overview of Java 29 for(x = 0; x<10; x++) You might want to try this. As you will see, the loop still runs exac ...

30 Part I: The Java Language This is x: 1 This is y: 18 This is x: 2 This is y: 16 This is x: 3 This is y: 14 This is x: 4 This ...

Chapter 2: An Overview of Java 31 Invalid identifier names include these: 2count high-temp Not/ok Literals A constant value in J ...

32 Part I: The Java Language The keywordsconstandgotoare reserved but not used. In the early days of Java, several other keyword ...

3 Data Types, Variables, and Arrays 3 Data Types, Variables, and Arrays T his chapter examines three of Java’s most fundamental ...

Characters This group includeschar, which represents symbols in a character set, like letters and numbers. Boolean This group i ...

byte The smallest integer type isbyte. This is a signed 8-bit type that has a range from –128 to 127. Variables of typebyteare e ...

36 Part I: The Java Language seconds = days * 24 * 60 * 60; // convert to seconds distance = lightspeed * seconds; // compute di ...

Chapter 3: Data Types, Variables, and Arrays 37 many iterative calculations, or are manipulating large-valued numbers,doubleis t ...

38 Part I: The Java Language This program displays the following output: ch1 and ch2: X Y Notice thatch1is assigned the value 88 ...

Chapter 3: Data Types, Variables, and Arrays 39 if(b) System.out.println("This is executed."); b = false; if(b) System.out.print ...

40 Part I: The Java Language An integer literal can always be assigned to alongvariable. However, to specify along literal, you ...

The escape sequences and octal/hexadecimal notations that were defined for character literals work the same way inside of string ...

42 Part I: The Java Language Here are several examples of variable declarations of various types. Note that some include an init ...

Chapter 3: Data Types, Variables, and Arrays 43 not the rule. In Java, the two major scopes are those defined by a class and tho ...

44 Part I: The Java Language Within a block, variables can be declared at any point, but are valid only after they are declared. ...

Chapter 3: Data Types, Variables, and Arrays 45 int bar = 1; { // creates a new scope int bar = 2; // Compile-time error – bar a ...

46 Part I: The Java Language Here,target-typespecifies the desired type to convert the specified value to. For example, the foll ...

Let’s look at each conversion. When the value 257 is cast into abytevariable, the result is the remainder of the division of 257 ...