Java用正则对字符串进行处理并判断是否能转为数字

代码如下所示：

package java_test;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
 * @author: gznc_pcc
 * @date:2018年6月1日 10:50:38
 * @version :
 * 
 */
class Main 
{
  public static void main(String[] args) {
    String lineString = "[\"1\"]";
    String line = "[\"on\",\"1\",\"5\",\"8\",\"10\"]";
    lineString = line.replaceAll("[\"\\[\\]]", "");//用""替换" [ ]
    String[] word = lineString.split(","); //以,切割
    System.out.println(lineString);
    for(int i=0;i<word.length;i++){
      Pattern pattern = Pattern.compile("[0-9]*"); //正则，匹配数字
      Matcher matcher = pattern.matcher(word[i]); 
      if(matcher.matches()){
        System.out.println("1:可以转换");
        System.out.println(Integer.parseInt(word[i]));
      }
      else {
        System.out.println("2:不能转换");
        System.out.println(word[i]);
      }
    }
  }
}

总结