字符串中去除 数字 字母 符号

String str = "今天1@天%。气^64很？不?错.心情6666很好。。。。。";
String str1 = str.replaceAll("[，。、|~！@#￥；【》‘“”、】《·\\-？：，：{}%……&*（）\\=—+ A-Za-z0-9]","").trim().equals("");

N14=》M*M

    public static void preCNN(String modelPathName,String sentence) throws IOException {
        //分词
        String Participle = ANJS_Participle.ANJS_FC(sentence);
        String[] ReParticiple = Participle.trim().split(" ");               
        //词转向量
        Word2VEC vec = new Word2VEC();  
        vec.loadJavaModel("model/four_dimensional_My40d_");
        double[] reVec = new double[1600];      
        int toPreNum = 0;

        for (int i = 0; i < ReParticiple.length; i++) {
            float[] vecrDes = vec.getWordVector(ReParticiple[i].trim());//转向量
            if (vecrDes!=null) {
                for (int j = 0; j < vecrDes.length; j++) {
                    reVec[toPreNum] = vecrDes[j];
                    toPreNum++;
                }
            }

        }
        if (toPreNum!=0) {
            //N*1*=>M*M
            OutputStreamWriter out = new OutputStreamWriter(new FileOutputStream(new File("temp/txt2Vec2Array1600.txt")),"GBK") ;

            double[] toPre = new double[1600];
            for (int i = 0; i < toPre.length; i++) {
                toPre[i] = reVec[i%toPreNum];
                out.write(reVec[i%toPreNum]+",");
            }
            out.close();   //关闭写操作
        }else {
            System.out.println(sentence+"  《=  该句话无词向量。。。。。");
        }
    }