Stack Examples
- Creating a Stack and Performing Basic Operations like Push, Pop and Peek
- Java Stack push() Method Example
- Iterating over a Stack Example
- Java Stack pop() Method Example
- Java Stack peek() Method Example
- Java Stack empty() Method Example
- Java Stack search() Method Example
- Java Convert ArrayList to Stack Example
- Java Convert Array to Stack Example
Iterating over a Stack Example
This example shows various ways of iterating over a Stack.- Iterate over a Stack using Java 8 forEach().
- Iterate over a Stack using iterator().
- Iterate over a Stack using iterator() and Java 8 forEachRemaining() method.
- Iterate over a Stack from Top to Bottom using listIterator().
import java.util.Iterator;
import java.util.ListIterator;
import java.util.Stack;
public class IterateOverStackExample {
public static void main(String[] args) {
Stack<String> stackOfPlates = new Stack<>();
stackOfPlates.add("Plate 1");
stackOfPlates.add("Plate 2");
stackOfPlates.add("Plate 3");
stackOfPlates.add("Plate 4");
System.out.println("=== Iterate over a Stack using Java 8 forEach() method ===");
stackOfPlates.forEach(plate -> {
System.out.println(plate);
});
System.out.println("\n=== Iterate over a Stack using iterator() ===");
Iterator<String> platesIterator = stackOfPlates.iterator();
while (platesIterator.hasNext()) {
String plate = platesIterator.next();
System.out.println(plate);
}
System.out.println("\n=== Iterate over a Stack using iterator() and Java 8 forEachRemaining() method ===");
platesIterator = stackOfPlates.iterator();
while (platesIterator.hasNext()) {
String plate = platesIterator.next();
System.out.println(plate);
}
System.out.println("\n=== Iterate over a Stack from TOP to BOTTOM using listIterator() ===");
// ListIterator allows you to traverse in both forward and backward directions.
// We'll start from the top of the stack and traverse backwards.
ListIterator<String> platesListIterator = stackOfPlates.listIterator(stackOfPlates.size());
while (platesListIterator.hasPrevious()) {
String plate = platesListIterator.previous();
System.out.println(plate);
}
}
}
# Output
=== Iterate over a Stack using Java 8 forEach() method ===
Plate 1
Plate 2
Plate 3
Plate 4
=== Iterate over a Stack using iterator() ===
Plate 1
Plate 2
Plate 3
Plate 4
=== Iterate over a Stack using iterator() and Java 8 forEachRemaining() method ===
Plate 1
Plate 2
Plate 3
Plate 4
=== Iterate over a Stack from TOP to BOTTOM using listIterator() ===
Plate 4
Plate 3
Plate 2
Plate 1
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