Help with tic-tac-toe game
Hi guys, i'm making a tic-tac-toe game..
I have a boolean method with a return statement, but when i try to compile it(in bluej) it says missing return statement.. I cant figure out where ive gone wrong.
Heres the code:
(Bluej highlights the ending bracket of the isRow method and says missing return statement, even though i have put a return true;. Also, i tried adding an else return false; after the return true, but same error.)
import java.io.*;
publicclass TicTacToeDemo
{
publicvoid display()throws IOException
{
InputStreamReader isr =new InputStreamReader(System.in);
BufferedReader br =new BufferedReader(isr);
char arr[][] ={{'-','-','-'},{'-','-','-'},{'-','-','-'}};
char symbol[] ={'O','X'};
int i = 0;
boolean isDraw=true;
System.out.println("\t\t\t\tTIC TAC TOE");// 4 \t's center word
print(arr);
do
{
System.out.println("\t\t\t\tTIC TAC TOE");
print(arr);
System.out.println("PLAYER "+(i%2==0?"1":"2"));// IF i%2==0 PRINT 1 ELSE PRINT 2
System.out.println("Enter your number");
int n = Integer.parseInt(br.readLine());
char s = symbol[i%2];
fillArray(arr,s,n);
i++;
print(arr);
if (isRow(arr,s) || isColumn(arr,s) || isDiagonal(arr,s))
{
System.out.println("Player "+(i%2+1)+"Won");
isDraw=false;
}
}
while (i<9);
if (isDraw)
System.out.println("Game is Draw");
}
privatevoid print(char arr[][])
{
for (int i=0;i<3;i++)
{
for (int j=0;j<3;j++)
{
System.out.print(arr[i][j]+"\t");
}
System.out.println();
}
}
privatevoid fillArray(char arr[][],char s,int n)
{
if (n<=3)
{
arr[0][n-1]=s;
}
elseif (n>3 && n<=6)
{
arr[1][n-4]=s;
}
elseif (n>6 && n<=9)
{
arr[2][n-7]=s;
}
else
{
System.out.println("Invalid Number.");
}
}
privateboolean isRow(char arr[][],char s)
{
for (int i=0;i<3;i++)
{
if (arr[i][0]==arr[i][1] && arr[i][1]==arr[i][2])
{
if (arr[i][0]==s)
returntrue;
}
}
}
privateboolean isColumn(char arr[][],char s)
{
for (int i=0;i<3;i++)
{
if (arr[0][i]==arr[1][i] && arr[1][i]==arr[2][i])
{
if(arr[0][i]==s)
returntrue;
}
}
}
privateboolean isDiagonal(char arr[][],char s)
{
if (arr[0][0]==arr[1][1] && arr[1][1]==arr[2][2])
{
if (arr[0][0]==s)
returntrue;
}
elseif (arr[0][2]==arr[1][1] && arr[1][1]==arr[2][0])
{
if (arr[0][2]==s)
returntrue;
}
else
returnfalse;
}
}
Message was edited by:
Overkill
