Question

Why it print the wrong output?

ArrayList<String> loc = new ArrayList<String>();

This arraylist stored the value of:

[topLeft, topLeft, topLeft, bottomLeft, topLeft, bottomLeft, topLeft, topLeft, Left, topLeft]

the firs index 0 is = topLeft

if(loc.get(1)=="topLeft")
   System.out.println("same")

else {
   System.out.println("not same")
}

This program print the wrong output not same instead of same

Answer 1

Use the equals(Object) method, not the == operator, for example loc.equals("topLeft")

The == operator returns true if two references point to the same Object in memory. The equals(Object o) method checks whether the two objects are equivalent, so will return true if two Strings contain only the same characters in the same order.