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java Programming Glossary: o2How do I sort a list with multiple sort parameters? http://stackoverflow.com/questions/1421322/how-do-i-sort-a-list-with-multiple-sort-parameters Person ID_SORT public int compare Person o1 Person o2 return Integer.valueOf o1.getId .compareTo o2.getId NAME_SORT.. o1 Person o2 return Integer.valueOf o1.getId .compareTo o2.getId NAME_SORT public int compare Person o1 Person o2 return.. o2.getId NAME_SORT public int compare Person o1 Person o2 return o1.getFullName .compareTo o2.getFullName public static..
whats the difference between “.equals and ==” http://stackoverflow.com/questions/1643067/whats-the-difference-between-equals-and it is so much for that. so here's an example if o1.equals o2 System.out.println Both integer objects are the same instead.. objects are the same instead of what i'm used to if o1 o2 System.out.println Both integer objects are the same What's..
Sorting an ArrayList of Contacts based on name? [duplicate] http://stackoverflow.com/questions/1814095/sorting-an-arraylist-of-contacts-based-on-name field.substring 1 public int compare Object o1 Object o2 try if o1 null o2 null o1 o1.getClass .getMethod getter new.. 1 public int compare Object o1 Object o2 try if o1 null o2 null o1 o1.getClass .getMethod getter new Class 0 .invoke o1.. .getMethod getter new Class 0 .invoke o1 new Object 0 o2 o2.getClass .getMethod getter new Class 0 .invoke o2 new Object..
Sorting a list of points with Java http://stackoverflow.com/questions/5178092/sorting-a-list-of-points-with-java
Sort objects in ArrayList by date? http://stackoverflow.com/questions/5927109/sort-objects-in-arraylist-by-date MyObject public int compare MyObject o1 MyObject o2 return o1.getDateTime .compareTo o2.getDateTime However the.. MyObject o1 MyObject o2 return o1.getDateTime .compareTo o2.getDateTime However the above works only if you're certain.. MyObject public int compare MyObject o1 MyObject o2 if o1.getDateTime null o2.getDateTime null return 0 return o1.getDateTime..
http://stackoverflow.com/questions/780541/how-to-sort-hash-map new Comparator Person public int compare Person o1 Person o2 return o1.getAge o2.getAge for Person p peopleByAge System.out.println.. public int compare Person o1 Person o2 return o1.getAge o2.getAge for Person p peopleByAge System.out.println p.getName..
how to sort Map values by key in Java http://stackoverflow.com/questions/922528/how-to-sort-map-values-by-key-in-java new Comparator Foo public int compare Foo o1 Foo o2 ... SortedSet Foo keys new TreeSet Foo map.keySet comparator..
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