Urgent: im new and need help with this task!

Question

I need help with converting the pseudo code to java code, Any help will b greatly appreciated!
// Declare a variable of type int, called "choice".
// Generate a random number between 0 inclusive and 7
// exclusive, and store that number into the variable
// "choice". (How do you generate a random number? Use the
// nextInt(int) method inside the random object, which takes
// a single int parameter. You can read about this method
// here:
// http://java.sun.com/j2se/1.5.0/docs/api/java/util/Random.html
// If "choice" is equal to 0, then create and return a new
// IBlock object, passing "game" as the parameter to IBlock's
// constructor.
// Otherwise, if "choice" is equal to 1, then create and
// return a new TBlock object, passing "game" as the
// parameter.
// Otherwise, if "choice" is equal to 2, then create and
// return a new OBlock object, passing "game" as the
// parameter.
// Otherwise, .... etc ....
// (please continue to do this for all of the 7 kinds of block
// that can be created)

Answer 1

import java.util.*;
public class Echo{
     public static void main(String[] args)     {
          //System.out.println("enter ur choice");
Random r=new Random();
int choice=r.nextInt(6);
     switch(choice)
     case 0:
          IBlock object0=new IBlock("games");
          break;
     case 1:
          TBlock object1=new TBlock("games");
          break;
     case 2:
          OBlock object2=new OBlock("games");
          break;
     case 3:
          LBlock object3=new LBlock("games");
          break;
     case 4:
          JBlock object4=new JBlock("games");
          break;
     case 5:
          SBlock object5=new SBlock("games");
          break;
     case 6:
          ZBlock object6=new ZBlock("games");
          break;
class TBlock
     TBlock(String s)
          System.out.print("TBlock called"+"\n value passed is "+s);
class IBlock
     IBlock(String s)
          System.out.print("IBlock called"+"\n value passed is "+s);
class JBlock
     JBlock(String s)
          System.out.print("JBlock called"+"\n value passed is "+s);
class OBlock
     OBlock(String s)
          System.out.print("OBlock called"+"\n value passed is "+s);
class LBlock
     LBlock(String s)
          System.out.print("LBlock called"+"\n value passed is "+s);
class SBlock
     SBlock(String s)
          System.out.print("SBlock called"+"\n value passed is "+s);
class ZBlock
     ZBlock(String s)
          System.out.print("ZBlock called"+"\n value passed is "+s);
}