18 lines
508 B
Java
18 lines
508 B
Java
|
//: references/ImmutableStrings.java
|
||
|
|
// Demonstrating StringBuffer.
|
||
|
|
|
||
|
|
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 StringBuffer:
|
||
|
|
StringBuffer sb =
|
||
|
|
new StringBuffer("abc"); // Creates String!
|
||
|
|
sb.append(foo);
|
||
|
|
sb.append("def"); // Creates String!
|
||
|
|
sb.append(Integer.toString(47));
|
||
|
|
System.out.println(sb);
|
||
|
|
}
|
||
|
|
} ///:~
|