WordSearch.java

import java.util.*;

public class WordSearch {
    private char[][] board;

    public WordSearch(int rows, int cols) {
	board = new char[rows][cols];
	for (int i=0;i<rows;i++) {
	    for (int j=0;j<cols;j++) {
		board[i][j]='-';
	    }
	}

    }

    public WordSearch() {
	this(20,20);
    }

    public String toString() {
	String s="";
	for (int i=0;i<board.length;i++) {
	    for (int j=0;j<board[i].length;j++) {
		s=s+board[i][j];
	    }
	    s=s+"\n";
	}
	return s;
    }

    public boolean addWordH(int row, int col, String word) {
	if(col+word.length()>board[0].length) {return false;}
	else {
	    for(int i=0; i<word.length(); i++)
		if(board[row][col+i]!='-') {return false;}
	    for(int i=0; i<word.length(); i++)
		board[row][col+i]=word.charAt(i);
	}
	return true;
    }

}