编辑器
class Box<T> { T value; // T is a placeholder for any data type void set(T value) { this.value = value; } T get() { return value; } } public class Main { public static void main(String[] args) { // Create a Box to hold a String Box<String> stringBox = new Box<>(); stringBox.set("Hello"); System.out.println("Value: " + stringBox.get()); // Create a Box to hold an Integer Box<Integer> intBox = new Box<>(); intBox.set(50); System.out.println("Value: " + intBox.get()); } }
Value: Hello
Value: 50
编辑器