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Copy pathTestArrayList.java
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32 lines (27 loc) · 1.02 KB
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public class TestArrayList {
public static void main(String[] args) {
java.util.ArrayList cityList=new java.util.ArrayList();
cityList.add("London");
cityList.add("Denver");
cityList.add("Paris");
cityList.add("Miami");
cityList.add("Seoul");
cityList.add("Tokyo");
System.out.println("List size? "+cityList.size());
System.out.println("Is Miami in the list? "+cityList.contains("Miami"));
System.out.println("The location of Denver in the list? "+cityList.indexOf("Denver"));
System.out.println("Is the list empty? "+cityList.isEmpty());
cityList.add(2, "Xian");
cityList.remove("Miami");
cityList.remove(1);
System.out.println(cityList.toString());
for (int i = cityList.size()-1; i >= 0; i--) {
System.out.print(cityList.get(i)+" ");
}
System.out.println();
java.util.ArrayList list=new java.util.ArrayList();
list.add(new Circle4(2));
list.add(new Circle4(3));
System.out.println("The area of the circle? "+((Circle4)list.get(0)).getArea());
}
}