string comparison

Use .equals(obj) method instead of ==.

(8/26/2009)

Convert int to string in Java

String s = Integer.toString(value);

List operation

ArrayList (java.util.ArrayList) is similar to list of scripting languages.  Vector is similar and thread safe, but slower.

  ArrayList list;

(6/25/2009)

What is @Test ?

@Test is an annotation used by JUnit.

Annotation is a Java mechanism that was introduced with Java 1.5.  Annotations can be applied to a program's declarations of classes, fields, methods and other program elements.

isAnnotationPresent().

@Test annotation was introduced with JUnit 4.  @Test annotates a method so that JUnit can find test cases.  In other words, JUnit4 doesn't require test cases to inherit TestCase class nor to be named as testXYZ.

(7/9/2009)