Java Regex Int Validate parseInteger(String inStr, Integer def)

Description

parse Integer

License

Apache License

Declaration

public static Integer parseInteger(String inStr, Integer def) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.util.regex.Pattern;

public class Main {
    public static final String EMPTY = "";

    public static Integer parseInteger(String inStr, Integer def) {
        if (isEmpty(inStr) || !isNumeric(inStr)) {
            return def;
        } else {/*from   w ww . j  av  a2 s.c o  m*/
            return Integer.valueOf(inStr);
        }
    }

    public static Integer parseInteger(Object obj, Integer def) {
        return parseInteger(String.valueOf(obj), def);
    }

    public static boolean isEmpty(String inStr) {
        if (null == inStr || EMPTY.equals(inStr.trim())) {
            return true;
        }
        return false;
    }

    public static boolean isNumeric(String inStr) {
        if (null == inStr || EMPTY.equals(inStr.trim())) {
            return false;
        }
        Pattern pattern = Pattern.compile("[0-9]*");
        return pattern.matcher(inStr).matches();
    }

    public static boolean equals(CharSequence cs1, CharSequence cs2) {
        return cs1 == null ? cs2 == null : cs1.equals(cs2);
    }
}

Related

1. parseInt(Object str)
2. parseInt(String value)
3. parseInt(String[] strs)
4. parseInteger(String attrVal)
5. parseInteger(String key, String sourceString)
6. parseInteger(String str)
7. parseIntegerList(String var0, int var1, int var2)
8. parseIntegers(String integerString)