Data Structure course

Can anybody please help me with this ?

inport java.util.ArrayList: inport java.util.collections import java.util.Comparator import java.util.List: class Empl private Strirg nane private int salary: public class MyArraylistsort ( public Enpl(String n, int sX public static void nain(String al1)0 this.nane- this.salary-s List 1ist new ArrayListcip>O: list.add(new Empl("Ram, 3000)) 1ist.add(new Empl("John".6800)) list.add(new Empl("Crish,20ee)); list.add(new Empl("Ton",2400)); Collections. sort(list,new MysalaryComp(O): System.out.printin("Sorted 1ist entries: for(Empl e:list)H public String getNane) public void setNane(String nane) ( public int getsalary) [ public void setsalary(int salary) f public String tostring)t return nane: this,name nane; System.out.printin(e): return salary; this salary salary return "Name: "this.naneSalary: "+this.salary; class MysalaryComp implenents ConparatorcEmpl>( @Override public int compare(Empl el, Empl e2) f if(e1.getsalary) e2.getsalary))( ) else f return 1 return -1