Given 2 strings, a and b, return the number of the positions where they contain the same length 2 substring. So "xxcaazz" and "xxbaaz" yields 3, since the "xx", "aa", and "az" substrings appear in the same place in both strings.
stringMatch("xxcaazz", "xxbaaz") → 3 stringMatch("abc", "abc") → 2 stringMatch("abc", "axc") → 0
PROGRAM CODE:
public class java5
{
public static intstringMatch(String str1, String str2)
{
String s1, s2;
intcnt = 0;
for(inti = 0; i< (str1.length()) - 1; i++)
{
if(i< (str1.length()) - 2)
{
s1 = str1.substring(i, i + 2);
s2 = str2.substring(i, i + 2);
}
else
{
s1 = str1.substring(i);
s2 = str2.substring(i);
}
//System.out.println(s1 + "\t" + s2);
if(s1.equals(s2))
cnt++;
}
return cnt;
}
public static void main(String[] args)
{
System.out.println(stringMatch("xxcaazz", "xxbaaz"));
System.out.println(stringMatch("abc", "abc"));
System.out.println(stringMatch("abc", "axc"));
}
}Output:
3
2
0