Java Integer Create toIntValue(char ch)

Description

to Int Value

License

Open Source License

Declaration

public static int toIntValue(char ch) 

Method Source Code

//package com.java2s;

public class Main {
    public static int toIntValue(char ch) {
        if (!isDigit(ch)) {
            throw new IllegalArgumentException("The character " + ch + " is not in the range '0' - '9'");
        }/*from w  w w . j av a2s.c o  m*/
        return ch - 48;
    }

    public static int toIntValue(char ch, int defaultValue) {
        if (!isDigit(ch)) {
            return defaultValue;
        }
        return ch - 48;
    }

    public static int toIntValue(Character ch) {
        if (ch == null) {
            throw new IllegalArgumentException("The character must not be null");
        }
        return toIntValue(ch.charValue());
    }

    public static int toIntValue(Character ch, int defaultValue) {
        if (ch == null) {
            return defaultValue;
        }
        return toIntValue(ch.charValue(), defaultValue);
    }

    public static boolean isDigit(char c) {
        return (c >= '0') && (c <= '9');
    }
}

Related

1. toIntsFromUBytes(byte[] byteArray)
2. toIntStr(String floatStr)
3. toIntString(Integer integer)
4. toIntString(Object object)
5. toIntUnsigned(short x)
6. toIntValue(char ch, int defaultValue)
7. toIntValue(final char ch)
8. toIntValue(final Object o)
9. toIntValue(Object number)