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Trail: Learning the Java Language
Lesson: Language Basics
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Answers to Questions and Exercises: Expressions, Statements, and Blocks

### Questions

> 1. Operators may be used in building expressions, which compute values.

> 2. Expressions are the core components of statements.

> 3. Statements may be grouped into blocks.

> 4. The following code snippet is an example of a compound expression.

>    >      1 * 2 * 3

> 5. Statements are roughly equivalent to sentences in natural languages, but instead of ending with a period, a statement ends with a semicolon.

> 6. 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`

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