Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {
    /**
     * @param s1
     * @param s2
     * @return the common string in both {@code s1} and {@code s2}
     */
    public static String getCommonString(String s1, String s2) {
        int l1 = s1.length();
        int l2 = s2.length();
        if (l1 == l2) {
            return s1;
        }

        int length = Math.min(l1, l2);

        String returnString = null;
        for (int i = 0; i < length; i++) {
            if (s1.charAt(i) == s2.charAt(i)) {
                continue;
            }
            returnString = s1.substring(0, i);
            break;
        }
        if (returnString == null) {
            returnString = l1 < l2 ? s1 : s2;
        }

        if (returnString.endsWith("/")) {
            int l = returnString.length();
            if (l > 1) {
                return returnString.substring(0, l - 1);
            }
        }
        return returnString;
    }
}