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Get lower key from NavigableMap in Java
<p>To get lower key means returning the greatest key strictly less than the given key. This can be done using lowerKey() method.</p><p>The following is an example to get lower key from NavigableMap −</p><h2>Example</h2><p><a class="demo" href="http://tpcg.io/Pa8lp8" rel="nofollow" target="_blank"> Live Demo</a></p><pre class="prettyprint notranslate">import java.util.*; public class Demo { public static void main(String[] args) { NavigableMap<Integer, String> n = new TreeMap<Integer, String>(); n.put(5, "Tom"); n.put(9, "John"); n.put(14, "Jamie"); n.put(1, "Tim"); n.put(4, "Jackie"); n.put(15, "Kurt"); n.put(30, "Tiger"); n.put(24, "Jacob"); System.out.println("NavigableMap elements... "+n); System.out.println("Lower Key = "+n.lowerKey(11)); } }</pre><h2>Output</h2><pre class="result notranslate">NavigableMap elements... {1=Tim, 4=Jackie, 5=Tom, 9=John, 14=Jamie, 15=Kurt, 24=Jacob, 30=Tiger} Lower Key = 9</pre>
Updated on 30-Jul-2019 22:30:24
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