1. If an instance of the GridLayout class in java.awt package is used as a layout manager for a java.awt.Frame object, then all the components added directly to the Frame object are of the same width and height.   True   False   2. The BorderLayout class in java.awt is intended mainly to allow decorative borders to be laid out around graphic components.   True   False   3. The System.in and System.out objects are created by default and need not be created explicitly.   True   False   4. An instance of class java.awt.Panel cannot be added to another instance of the same class.   True   False   5. As a part of the standard API, Java provides a class called Directory in the package java.io which enables the listing of the contents of a directory.   True   False   6. The expression str.length returns the length (number of characters) contained in str, a String object.   True   False   7. Java makes it easy to read floats and doubles by providing methods to accomplish this in its FileReader class in the package java.io.   True   False