this method must return a result of type boolean, java
this method must return a result of type boolean, java public boolean Winner() { for (int z = 0; z < 3; z++) { if (board[z] != null && board[z] == board[z+3] && board[z] == board[z+6] ) { return true; } } for(int i=0; i<7;i+=3){ if (board[i] != null && board[i] == board[i+1] && board[i] == board[i+2]) { return true;} } } It returns me this error: this method must return a result of type boolean. What am I doing wrong? 5 Answers 5 Right now, the function isn't guaranteed to return a boolean , because it's possible that neither of the if statements will ever be entered. boolean if You could fix it like this (but only do this if it's actually what your logic needs!): public boolean Winner() { for (int z = 0; z < 3; z++) { if (board[z] != null ...