Recursive Character Search and Destroy

I receive a string, and I want to remove any 'a', 'b' and 'c' characters, in a recursive way.

How do I do this in C and Java?

Thanks

char *removeCharacters(char *string,char removeMe)
{
int i;
int length;
for(length = 0;string[length]!='\0';length++){}
char *newString = malloc(sizeof(char) * length);

for(length = 0;string[length]!='\0';length++)
{

if(string[length]==removeMe)
{
for
}

}


}