cs notebook0
  • Introduction
  • Core Java
  • some notes
  • Data structure&algorithm
  • Garbage Collection
  • HashMap
  • Collection0
  • Collection1
  • Collection2
  • comparatorVScomparable
  • exception0
  • exception1
  • exception2
  • Enum in Java
  • JVM
  • Wrapper Classes in Java
  • String, int convert
  • HashSetVSTreeSetVSLinkedHashSet
  • Pair
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  • 1 Comparable interface
  • 1.1 Comparable interface has compareTo(T obj) method to be override
  • 2 Comparator interface
  • 2.1 Comparator interface compare(Object o1, Object o2) method need to be implemented.

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comparatorVScomparable

1 Comparable interface

1.1 Comparable interface has compareTo(T obj) method to be override

can sort based on one field only and we can't chose the field on which we want to sort object.##

2 Comparator interface

2.1 Comparator interface compare(Object o1, Object o2) method need to be implemented.

PreviousCollection2Nextexception0

Last updated 5 years ago

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