public class A
{
  public String strA ;
  public String strB ;
  public A
  {
  }
}

public class A
{
  private String strA ;
  private String strB ;
  public A
  {
  }
  
  public void setA(String strParam)
  {
    strA = strParam
  }
  
  public void setB(String strParam)
  {
    strB = strParam
  }

  public String getA()
  {
    return strA ;
  }

  public String getB()
  {
    return strB ;
  }
}