String[] mT={"A","B"};
String[] mT2={"A","BB","C","A","B","C","C","A","D","F","B"};

for(int i=0;i<mT.length;i++)
{
    for(int j=0;j<mT2.length;j++)
    {
        if(mT[i].equals(mT2[j]))
        {
            System.out.println("Equal Values are :"+mT2[j]);
        }
        else
        {
            System.out.println(" Not- Equal Values are :"+mT2[j]);
        }
    }
}

output :

Equal Values are :A
Not- Equal Values are :BB
Not- Equal Values are :C
Equal Values are :A
Not- Equal Values are :B
Not- Equal Values are :C
Not- Equal Values are :C
Equal Values are :A
Not- Equal Values are :D
Not- Equal Values are :F
Not- Equal Values are :B
Not- Equal Values are :A
Not- Equal Values are :BB
Not- Equal Values are :C
Not- Equal Values are :A
Equal Values are :B
Not- Equal Values are :C
Not- Equal Values are :C
Not- Equal Values are :A
Not- Equal Values are :D
Not- Equal Values are :F
Equal Values are :B

i'm getting duplicates values, how can i avoid the duplicates for not-equals.. any one help me. thanks in advance.. :)

several ways:
1. don't store duplicate values in the original array.
2. keep a String (or a set or a list or a .... )
if you reach the else block, check if that String(/set/list/...) already contains the letter. if it does, skip the rest. otherwise, print it and add it to the String(/set/list).
do remember to clean the String(/set/list) for each new iteration

Thanks for your reply... i tried this way

ArrayList<String> array =  new ArrayList<String>();
    for(int i=0;i<mT.length;i++)
    {
        for(int j=0;j<mT2.length;j++)
        {
            if(mT[i].equals(mT2[j]))
            {
                System.out.println("Equal Values are :"+mT2[j]);
            }
            else
            {

                 if(!array.contains(mT2[j]))
                     array.add(mT2[j]); 

            }
        }
    }

**output : **
Equal Values are :A
Equal Values are :A
Equal Values are :A
Equal Values are :B
Equal Values are :B
not equals : [BB, C, B, D, F, A]

Is that what you were looking for?

indeed, without clearing the array it works as well. but if you need a complete print for both A and B (having the complete list of non-equals for each seperately) you'll need to clear the array after your inner loop runs.
if just the one line as you have it is enough, this should be sufficient