java获取两个字符串中的最大匹配

package excise;

public class Test2 {

public static void main(String[] args) {

String s1 = "zhoumeixuabcdefg";
String s2 = "xuabced";
String maxsub = getMaxSubstring(s2, s1);
System.out.println("maxsub=" + maxsub);
}

public static String getMaxSubstring(String s1, String s2) {
String max, min;
max = s1.length() > s2.length() ? s1 : s2;
min = max.equals(s1) ? s2 : s1;
// System.out.println("max="+max+",,min="+min);
for (int x = 0; x < min.length(); x++) {
for (int y = 0, z = min.length() - x; z != min.length() + 1; y++, z++) {
// 获取s2子串
String temp = min.substring(y, z);
if (max.contains(temp)) {// s1.indexOf(temp)!=-1
return temp;
}
}
}
return null;
}

}