// references/ImmutableStrings.java

// (c)2017 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

// Demonstrating StringBuilder

public class ImmutableStrings {

public static void main(String[] args) {

String foo = "foo";

String s = "abc" + foo + "def"

+ Integer.toString(47);

System.out.println(s);

// The "equivalent" using StringBuilder:

StringBuilder sb =

new StringBuilder("abc"); // Creates String

sb.append(foo);

sb.append("def"); // Creates String

sb.append(Integer.toString(47));

System.out.println(sb);

}

}

/* Output:

abcfoodef47

abcfoodef47

*/