Add pre-builded functionalities in Eclipse for Java
1.- Identify our programming needs to solve. E.G.: replace accents on the go.
2.- Search what we need to do with Java on a browser. This gives us keywords for "3.-". E.G. search replace string accents library java apache
If it's not in the default java libraries that we may be importing automatically in our .java code:
3.- Import that solution (download a .jar containing it), because you always must have its library.
4.- Add it to your project reference libraries:
- Right click the new jar file, and select Build Path -> Add to Build Path.
5.- Import the library as usual. E.G.: add import org.apache.commons.lang3.StringUtils; to your .java.
6.- Adapt your new functionalit(y/ies).
Hope it helps not only me :)