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Groovy - List sort() method
Description
Groovy List size() method returns a sorted copy of the original List.
Syntax
List sort()
Parameters
NA
Return Value
The sorted list.
Example - Sorting a List of Integers
Following is an example of the usage of this method −
main.groovy
def lst = [11, 12, 3, 14]; def sortedList = lst.sort(); println(sortedList);
Output
When we run the above program, we will get the following result −
[3, 11, 12, 14]
Example - Sorting a List of Strings
Following is an example of the usage of this method −
main.groovy
def lst = ["Apple", "Peach", "Orange", "Mango"]; def sortedList = lst.sort(); println(sortedList);
Output
When we run the above program, we will get the following result −
[Apple, Mango, Orange, Peach]
Example - Sorting a List of Objects
Following is an example of the usage of this method −
main.groovy
def lst = [new Student(1, "Julie"),new Student(3, "Robert"),new Student(2, "Adam")]; def sortedList = lst.sort(); println(sortedList); class Student implements Comparable { int rollNo; String name; Student(int rollNo, String name){ this.rollNo = rollNo; this.name = name; } @Override public boolean equals(Object obj) { Student s = (Student)obj; return this.rollNo == s.rollNo && this.name.equalsIgnoreCase(s.name); } @Override public String toString() { return "[ " + this.rollNo + ", " + this.name + " ]"; } public int compareTo(Object obj){ Student s = (Student)obj; return this.rollNo - s.rollNo } }
Output
When we run the above program, we will get the following result −
[[ 1, Julie ], [ 2, Adam ], [ 3, Robert ]]
groovy_lists.htm
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