c$)$ Analyse the following pieces of code for "class A$"$ and "class B$".$ These pieces of code violate the design principles. class A $\{$ public String name; public Al$)\{$ name$=$"John"; $\}$ public void printnamel$)\{$ if $($name $!=$null$)\{$ System.out.println$($name$)$; $\}\}$ class B $\{$ public static void main$()\{$ A ob$=$ new A$)$; ob$.$name$=$"Mary"; System.out.println$($ob$.$name$)$; $\}\}1.$ Identity and describe the violation. $2.$ Make suggestions to resolve the violation. $3.$ Write the code for better design.