Variables

Naming

• Named in lowerCamelCase convention.

Usage

• Declare variables close to the location where they are used within Methods.
• Fields are declared at the beginning of each class over the constructor.
• Fields my references via this operator

/**/
public class MyClass
{
    private final int initial = 0;

    /**/

    public void someMethod( )
    {
        final int initial = this.initial;
        // Other method content
    }

    /**/
}
/**/

Receiving variables

• If you get some getXY() method to store a reference to an Object, centralize the variable

/**/
public void someMethod( )
{
    final Object object = this.other.getObject();

    if ( checkCondition( ) )
    {
        object.someMethod( );
    }
    else {
        object.otherMethod( );
    }
}
/**/

Flags

• Declare once instanciated variables as final.

/**/
public void someMethod( )
{
    final String neverChanged = "foobar";
    // Other method content
}
/**/