If you go to the trouble of importing a symbol statically, then you should make use of it, and you should do so consistently. Similarly, there's no reason to both import a class and then refer to it in code by its fully-qualified name. Otherwise, maintainers could be confused by the difference between qualified and unqualified references.


== Noncompliant Code Example

----
import java.util.*;
import java.math.BigInteger;
import static java.lang.String.format;
//...

String s1 = format("%cello %cellow", 'h','f');  // Compliant
String s2 = String.format("%cello %cellow", 'm','y');  // Noncompliant; is this a different format function than on the previous line?

java.util.List<String> list = new java.util.ArrayList<String>(); // Noncompliant; both classes included in java.util.* import

java.math.BigInteger myBigI = BigInteger.ZERO;  // Noncompliant. This mixed usage is particularly confusing
----


== Compliant Solution

----
import java.util.*;
import java.math.BigInteger;
import static java.lang.String.format;
//...

String s1 = format("%cello %cellow", 'h','f'); 
String s2 = format("%cello %cellow", 'm','y');  

List<String> list = new ArrayList<String>();

BigInteger myBigI = BigInteger.ZERO;
----