GenericPairClass.java

package de.plushnikov.data;

import lombok.Data;

@Data
public class GenericPairClass<K, V> {
  private K key;
  private V value;

  public static void main(String[] args) {
    GenericPairClass<String, Integer> pairClass = new GenericPairClass<String, Integer>();
    pairClass.setKey("Hallo");
    pairClass.getKey();
    pairClass.setKey("111");
  }
}