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Jul 22nd, 2019
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  1. import java.util.*;
  2.  
  3. public class Main
  4. {
  5. public static void main(String args[])
  6. {
  7. List<Integer> l=new ArrayList<>();
  8. l.add(10);
  9. l.add(20);
  10. l.add(30);
  11. l.add(10);
  12. l.add(50);
  13. l.add(60);
  14. l.add(90);
  15.  
  16. System.out.println(l);
  17. List<Integer> l2 = new ArrayList<Integer>();
  18. l2.add(11);
  19. l2.add(22);
  20. l2.add(33);
  21.  
  22. l.addAll(0, l2);
  23. System.out.println(l);
  24.  
  25. l.remove(2);
  26. System.out.println(l);
  27.  
  28. l.set(0,99);
  29. System.out.println(l);
  30.  
  31. System.out.println(l.get(0));
  32.  
  33. //show the First index of element else return -1
  34. System.out.println(l.indexOf(10));
  35.  
  36. //show the Last index of element else return -1
  37. System.out.println(l.lastIndexOf(10));
  38.  
  39. //Return List from index 2(including) to index 4(excluding)
  40. System.out.println(l.subList(2, 4));
  41.  
  42.  
  43.  
  44. }
  45.  
  46. }
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