Java Object to int castToInt(Object value)

Description

cast To Int

License

Apache License

Declaration

public static final Integer castToInt(Object value) 

Method Source Code

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

public class Main {
    public static final Integer castToInt(Object value) {
        if (value == null) {
            return null;
        }// ww w .j  a  v a  2s .c o  m

        if (value instanceof Integer) {
            return (Integer) value;
        }

        if (value instanceof Number) {
            return ((Number) value).intValue();
        }

        if (value instanceof String) {
            String strVal = (String) value;

            if (strVal.length() == 0) {
                return null;
            }

            if ("null".equals(strVal) || "NULL".equals(strVal)) {
                return null;
            }

            if (strVal.trim().length() == 0) {
                return null;
            }

            return Integer.parseInt(strVal);
        }

        throw new NumberFormatException("can not cast to int, value : " + value);
    }
}

Related

1. castInt(Object o)
2. castInt(Object o)
3. castToInt(double[] aDouble)
4. castToInt(final long value)
5. castToInteger(final String uid)
6. castToInteger(Object object)
7. castToInteger(Object value)
8. castToIntegerArray(Object[] array)