/**
* String pool in Kotlin (and Java)
* Program constants are put into String pool
* String objects are NOT
 */
fun main() {
    val aa = "aa";
    val aaa = "aa";
    val asb = StringBuffer()
    asb.append(aa);
    println("aaV===aaaV %b".format(aa === aaa)); // use === to get pointer equality
    val bb = asb.toString(); // or new String(asb)
    println("aaV===bbV %b".format(aa === bb)); // not the same pointer
    val cc = bb.intern();  
    println("aaV===ccV %b".format(aa === cc)); // same pointer!!
    val a5=aa+aaa
    val a55=aa+aaa
    println("a5V===a55V %b".format(a5 === a55)); 

}