ImmutableStrings.java Source code

Introduction

Here is the source code for ImmutableStrings.java

Source

// : appendixa:ImmutableStrings.java
// Demonstrating StringBuffer.
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.

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);

    }
} ///:~