Class AssertionExamples

java.lang.Object

net.jrodolfo.java_evolution.java04.assertions.AssertionExamples

public class AssertionExamples
extends Object

Demonstrates assertions, introduced in J2SE 1.4.

Constructor Summary

Constructors

Constructor	Description
AssertionExamples()

Method Summary

Modifier and Type	Method	Description
boolean	assertionsEnabled()	Shows whether assertions are enabled for this class.
String	normalizeUsername(String username)	Uses ordinary validation for public input.
int	remainingCapacity(int available, int reserved)	Uses an assertion for an internal invariant.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AssertionExamples

public AssertionExamples()

Method Details

assertionsEnabled

public boolean assertionsEnabled()

Shows whether assertions are enabled for this class.

Returns:

true when the JVM has enabled assertions for this class

remainingCapacity

public int remainingCapacity(int available,
 int reserved)

Uses an assertion for an internal invariant.

Parameters:

available - the total capacity available to the component

reserved - the portion already reserved by earlier internal code

Returns:

remaining capacity

normalizeUsername

public String normalizeUsername(String username)

Uses ordinary validation for public input.

Parameters:

username - user-provided text

Returns:

trimmed username