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ArrayList<String> list1 = new ArrayList<String>(List.of("item1", ...));
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Week 7: Enum, Generic Type, Streams, write to file, class diagram/14B. List of Seven Brothers
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Initialize a string type list, with values being the 7 brothers named "Edward", "William","Henry","George","Charles","Thomas" and "James".
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The list should be of 'ArrayList' type.
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The reference is stored in a variable named brothers.
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import java.util.Random;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Arrays;
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import java.util.List;
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public class Test{
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public static void main(String[] args){
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final Random r = new Random();
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//ADD
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ArrayList<String> brothers = new ArrayList<String>(List.of("Edward", "William","Henry","George","Charles","Thomas" ,"James"));
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System.out.println("brothers is an ArrayList: " + (brothers.getClass() == ArrayList.class));
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Collections.sort(brothers);
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System.out.println("Brothers:");
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brothers.stream().forEach(b -> System.out.println(b));
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}
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}
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brothers is an ArrayList: true
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Brothers:
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Charles
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Edward
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George
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Henry
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James
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Thomas
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William
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