34 lines
1.0 KiB
Java
34 lines
1.0 KiB
Java
//: containers/SetOperations.java
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// ©2015 MindView LLC: see Copyright.txt
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import java.util.*;
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import static com.mindviewinc.util.Print.*;
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public class SetOperations {
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public static void main(String[] args) {
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Set<String> set1 = new HashSet<>();
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Collections.addAll(set1,
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"A B C D E F G H I J K L".split(" "));
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set1.add("M");
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print("H: " + set1.contains("H"));
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print("N: " + set1.contains("N"));
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Set<String> set2 = new HashSet<>();
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Collections.addAll(set2, "H I J K L".split(" "));
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print("set2 in set1: " + set1.containsAll(set2));
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set1.remove("H");
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print("set1: " + set1);
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print("set2 in set1: " + set1.containsAll(set2));
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set1.removeAll(set2);
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print("set2 removed from set1: " + set1);
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Collections.addAll(set1, "X Y Z".split(" "));
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print("'X Y Z' added to set1: " + set1);
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}
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} /* Output:
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H: true
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N: false
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set2 in set1: true
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set1: [A, B, C, D, E, F, G, I, J, K, L, M]
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set2 in set1: false
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set2 removed from set1: [A, B, C, D, E, F, G, M]
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'X Y Z' added to set1: [A, B, C, D, E, F, G, M, X, Y, Z]
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*///:~
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