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package org.reextractor.util;

public class StringUtils {

    public static boolean equals(String str1, String str2) {
        if (str1 == null || str2 == null) return false;
        return str1.strip().equals(str2.strip());
    }

    public static boolean isNotEmpty(CharSequence cs) {
        return !isEmpty(cs);
    }

    public static boolean isEmpty(CharSequence cs) {
        return cs == null || cs.length() == 0;
    }

    public static boolean isNumeric(String str) {
        for (char c : str.toCharArray()) {
            if (!Character.isDigit(c)) return false;
        }
        return true;
    }
}