Browse - Programming Tips - What's the best way to insert a String into a String with Java?

Date: 2017sep28
Language: Java

Q.  What's the best way to insert a String into a String with Java?

A.  Use StringBuilder.insert()

// Insert before * in a string.
String insertDemo(final String in, final String more) {
	StringBuilder sb = new StringBuilder(in);
	int i = in.indexOf('*');
	if (i < 0) return in;
	sb.insert(i, more);
	return sb.toString();
}

Of course, this isn't best in every case.
But less error prone than using multiple substring's.