Write a Java program to implement the union operation of two sorted linkedlist list1 and list2. Union is to obtain a com

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Write a Java program to implement the union operation of twosorted linkedlist list1 and list2. Union is to obtain a combinationof elements but the duplicate elements will only appear once. Forexample, if list 1 has the elements 1,3,7, 10 and list 2 has theelements 2, 7,10, 12, then the union of the two lists include theelements 1,3,7,10,12.