Java String Difference difference(String str1, String str2)

Description

Returns the number of characters in the two Strings that are the same.

License

Open Source License

Parameter

Parameter	Description
str1	a String.
str2	a String.

Return

The number of characters in the two Strings that are the same.

Declaration

public static int difference(String str1, String str2) 

Method Source Code

//package com.java2s;
// %InstallDIR%\features\org.talend.rcp.branding.%PRODUCTNAME%\%PRODUCTNAME%license.txt

public class Main {
    /**/*from   w  w  w . j a v  a  2  s  .c  o  m*/
     * Returns the number of characters in the two Strings that are the same.
     * 
     * @param str1 a String.
     * @param str2 a String.
     * @return The number of characters in the two Strings that are the same.
     * 
     */
    public static int difference(String str1, String str2) {
        if (str1 == null || str2 == null) {
            return 0;
        }
        int lengthToMatch = Math.min(str1.length(), str2.length());
        int diff = 0;
        for (int i = 0; i < lengthToMatch; i++) {
            if (str1.charAt(i) == str2.charAt(i)) {
                diff++;
            }
        }
        return diff;
    }
}

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