Synchronized list and static member class in Java Program

How to create synchronized list

package com.java2novice.collections;

import java.util.ArrayList;

import java.util.Collections;

import java.util.List;

public class MySyncList

{

public static void main(String a[])

{

        List li = new ArrayList();

        List sysLi = Collections.synchronizedList(li);

        System.out.println("Synchronized list got created...");

    }

}

How to create synchronized set

package com.java2novice.collections;

import java.util.Collections;

import java.util.HashSet;

import java.util.Set;

public class MySyncSet

{

public static void main(String a[])

{

        Set ss = new HashSet();

        Set sysSet = Collections.synchronizedSet(ss);

        System.out.println("Synchronized set got created...");

    }

}

How to create synchronized map

package com.java2novice.collections;

import java.util.Collections;

import java.util.HashMap;

import java.util.Map;

public class MySyncMap

{

public static void main(String a[])

{

        Map mp = new HashMap();

        Map sysMapt = Collections.synchronizedMap(mp);

        System.out.println("Synchronized map got created...");

    }

}

How to initialise or call a static member class

package com.java2novice.nested.classes;

public class MyBasicStaticMemberClass

{

public static class MyStaticMemberExampleClass

{

public void printStatus()

{

            System.out.println("Hey I am inside static member class");

        }

    }

public static void main(String a[])

{

        StaticMemberTestClass smt = new StaticMemberTestClass();

        smt.testMemberClass();

    }

}

class StaticMemberTestClass

{

public void testMemberClass()

{

        MyBasicStaticMemberClass.MyStaticMemberExampleClass msme

                    = new MyBasicStaticMemberClass.MyStaticMemberExampleClass();

        msme.printStatus();

    }

}