Complete source code below will show you, how to compare two string with same characteristic but ignore about capital or ordinary letters. The characteristic that i mean here is, number of characters and sequence of characters. We will use method equalsIgnoreCase().

****************************************************************************
COMPLETE SOURCE CODE FOR : CompareStringIgnoreCapitalOrOrdinaryLetters.java
****************************************************************************
public class CompareStringIgnoreCapitalOrOrdinaryLetters
{
public static void main(String[]args)
{
 //Create first String = aaAAA
 //You can try other string that you want by change aaAAA
 String firstString="aaAAA";

 //Create second String = AAaaa
 //You can try other string that you want by change AAaaa
 String secondString="AAaaa";

 //Check if first String is same or not to second String
 if(firstString.equalsIgnoreCase(secondString))
 {
  //If first String equal to second String, it will print ( firstString is same to secondString )
  System.out.println("firstString is same to secondString");
 }
 else
 {
  //If first String not equal to second String, it will print ( firstString is not same to secondString )
  System.out.println("firstString is not same to secondString");
 }
}
}


****************************************************************************
JUST COMPILE AND EXECUTE IT
****************************************************************************