39 lines
927 B
Java
39 lines
927 B
Java
/*
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* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
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* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
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*/
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package testhashcode;
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/**
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*
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* @author caleb
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*/
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import java.util.*;
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public class TestHashSet {
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public static void main(String[] args) {
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// Create a hash set
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Set<String> set = new HashSet<>();
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// Add strings to the set
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set.add("London");
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set.add("Paris");
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set.add("New York");
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set.add("San Francisco");
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set.add("Beijing");
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set.add("New York");
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set.
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System.out.println(set);
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// Display the elements in the hash set
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for (String s: set) {
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System.out.print(s.toUpperCase() + " ");
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}
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// Process the elements using a forEach method
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System.out.println();
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set.forEach(e -> System.out.print(e.toLowerCase() + " "));
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System.out.println();
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}
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} |