30 lines
845 B
Java
30 lines
845 B
Java
// reuse/BlankFinal.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://OnJava8.com for more book information.
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// "Blank" final fields
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class Poppet {
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private int i;
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Poppet(int ii) { i = ii; }
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}
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public class BlankFinal {
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private final int i = 0; // Initialized final
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private final int j; // Blank final
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private final Poppet p; // Blank final reference
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// Blank finals MUST be initialized in the constructor:
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public BlankFinal() {
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j = 1; // Initialize blank final
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p = new Poppet(1); // Initialize blank final reference
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}
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public BlankFinal(int x) {
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j = x; // Initialize blank final
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p = new Poppet(x); // Initialize blank final reference
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}
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public static void main(String[] args) {
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new BlankFinal();
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new BlankFinal(47);
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}
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}
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