Java String Match Count countMatches(String string, String other)

Description

Returns how many times string contains other.

License

Apache License

Parameter

Parameter	Description
string	the string to search
other	the string that is searched

Return

the number of occurences

Declaration

public static int countMatches(String string, String other) 

Method Source Code

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

public class Main {
    /**/* w  w w . j  av a 2  s .  c  o m*/
     * Returns how many times <code>string</code> contains
     * <code>other</code>.
     * @param string the string to search
     * @param other the string that is searched
     * @return the number of occurences
     */
    public static int countMatches(String string, String other) {
        if (null == string)
            return 0;
        if (null == other)
            return 0;
        if (0 >= string.length())
            return 0;
        if (0 >= other.length())
            return 0;
        int count = 0;
        int index = 0;
        while ((index <= string.length() - other.length()) && (-1 != (index = string.indexOf(other, index)))) {
            count++;
            index += other.length();
        }
        return count;
    }
}

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