package chat.tools;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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public class Utils {
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public static String getRandomCode(int length) {
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StringBuilder sb = new StringBuilder();
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for (int i = 0; i < length; i++) {
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sb.append(((int)(Math.random()*100))%10);
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}
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return sb.toString();
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}
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public static boolean isMobile(String mobile) {
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boolean flag = false;
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try {
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Pattern p = Pattern.compile("^(1[3-9][0-9])\\d{8}$");
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Matcher m = p.matcher(mobile);
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flag = m.matches();
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} catch (Exception e) {
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flag = false;
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}
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return flag;
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}
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}
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