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Learning the Java Language
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Language Basics
The Java Tutorials have been written for JDK 8. Examples and practices described in this page don't take advantage of improvements introduced in later releases.
Answers to Questions and Exercises: Expressions, Statements, and Blocks
Questions
- Operators may be used in building expressions, which compute values.
- Expressions are the core components of statements.
- Statements may be grouped into blocks.
- The following code snippet is an example of a compound expression.
- Statements are roughly equivalent to sentences in natural languages, but instead of ending with a period, a statement ends with a semicolon.
- A block is a group of zero or more statements between balanced braces and can be used anywhere a single statement is allowed.
Exercises
Identify the following kinds of expression statements:
aValue = 8933.234; // assignment statement
aValue++; // increment statement
System.out.println("Hello World!"); // method invocation statement
Bicycle myBike = new Bicycle(); // object creation statement