Classes and objects in Java must be ... static String st; } The previous class fields were implicitly initialized to zero. However, you can also explicitly initialize class fields by directly ...

The Java String length() method of an array is followed by round brackets ... length cannot be resolved or is not a field Also be sure to initialize the Java String before you invoke the length() ...

Initialize the Java array to a non-null value ... New developers often confuse the Java array length property with the String class’ length() method. While their functions are similar, the syntax is ...