12 lines
419 B
Java
12 lines
419 B
Java
import java.util.LinkedList;
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...
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LinkedList queue = new LinkedList();
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System.out.println(queue.isEmpty()); // empty test - true
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queue.add(new Integer(1));
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queue.add(new Integer(2));
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queue.add(new Integer(3));
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System.out.println(queue); // [1, 2, 3]
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System.out.println(queue.removeFirst()); // 1
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System.out.println(queue); // [2, 3]
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System.out.println(queue.isEmpty()); // false
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