How do u use the equals method in java?

i want to return the array E to the main method buh it won't return is there something wrong with equals method...(my display method wrks perfectly fine)


*main method*


E=edit (n4,E,c,B);


display (D,E,A,B,C);





*edit method*


public static int[] edit (int n4,int []E,String c,String []B){


for (int i=0;i%26lt;E.length;i++){


if (B[i].equals(c)){


E[i]=n4;





}


}return E;


}

How do u use the equals method in java?
B[i].equals(c) there is a dot between B[i] and equals, is it r8. Or you may try: B[i]==(c)