CalculatorEA/Tabela.java at master · lipiw/CalculatorEA · GitHub

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public class Tabela
{
    private static String simbolo = "(^*/+-)";

    private static boolean[][] tabela =
       {{false,false,false,false,false,false,true },
        {false,true ,true ,true ,true ,true ,true },
        {false,false,true ,true ,true ,true ,true },
        {false,false,true ,true ,true ,true ,true },
        {false,false,false,false,true ,true ,true },
        {false,false,false,false,true ,true ,true },
        {false,false,false,false,false,false,false}};

    public static boolean isParaDesempilhar (char doTopo, char doStrTok) throws Exception
    {
        int lin=Tabela.simbolo.indexOf (doTopo);

        if (lin==-1)
            throw new Exception ("Char do topo invalido");

        int col=Tabela.simbolo.indexOf (doStrTok);

        if (col==-1)
            throw new Exception ("Char pego do StringTokenizer invalido");

        return Tabela.tabela[lin][col];
    }

}