26 lines
726 B
Java
26 lines
726 B
Java
// references/ImmutableStrings.java
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// (c)2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
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// Demonstrating StringBuilder
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public class ImmutableStrings {
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public static void main(String[] args) {
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String foo = "foo";
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String s = "abc" + foo + "def"
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+ Integer.toString(47);
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System.out.println(s);
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// The "equivalent" using StringBuilder:
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StringBuilder sb =
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new StringBuilder("abc"); // Creates String
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sb.append(foo);
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sb.append("def"); // Creates String
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sb.append(Integer.toString(47));
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System.out.println(sb);
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}
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}
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/* Output:
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abcfoodef47
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abcfoodef47
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*/
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