61 lines
1.3 KiB
Java
61 lines
1.3 KiB
Java
import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.ListIterator;
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public class MyIterator {
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public static void main(String[] args) {
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ArrayList<String> cars = new ArrayList<>();
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cars.add("Chevy");
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cars.add("Ford");
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cars.add("Honda");
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cars.add("Mercedes");
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cars.add("Toyota");
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// for loop
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System.out.println("For Loop:");
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for (int i = 0; i < cars.size(); i++) {
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System.out.print(cars.get(i) + " ");
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}
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// advanced for loop
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System.out.println("\n\nAdvanced For Loop:");
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for (String car : cars) {
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System.out.print(car + " ");
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}
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// while loop
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System.out.println("\n\nWhile Loop:");
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int i = 0;
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while (i < cars.size()) {
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System.out.print(cars.get(i++) + " ");
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}
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// Iterator (supports hasNext, next, remove)
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System.out.println("\n\nIterator:");
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Iterator<String> iterator = cars.iterator();
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while (iterator.hasNext()) {
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System.out.print(iterator.next() + " ");
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}
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// ListIterator (supports hasNext, next, remove, hasPrevious, previous, add)
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System.out.println("\n\nListIterator:");
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ListIterator<String> li = cars.listIterator();
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while (li.hasNext()) {
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System.out.print(li.next() + " ");
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}
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// Java 8 Stream
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System.out.println("\n\nJava 8 Stream:");
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cars.forEach((car) -> {
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System.out.print(car + " ");
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});
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}
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}
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