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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	private static int children = 7;
  11.  
  12. 	public static void main (String[] args) throws java.lang.Exception
  13. 	{
  14.         List<School> list = new ArrayList<>(  );
  15.         list.add(new School(0,20,0,"Ugly"));
  16.         list.add(new School(30,20,50,"Normal"));
  17.         list.add(new School(50,20,100,"Best"));
  18.  
  19.         Optional<School> max = list.stream().max( (el1, el2) -> el1.getEducation() - el2.getEducation() );
  20.         if (max.isPresent()) {
  21.             School school = max.get();
  22.             school.setSpace(school.getSpace() - children);
  23.         }
  24.  
  25.  
  26.         School maxSchool = null;
  27.         for (School school : list) {
  28.             if (maxSchool == null) {
  29.                 maxSchool = school;
  30.             } else if (maxSchool.getEducation() < school.getEducation()) {
  31.                 maxSchool = school;
  32.             }
  33.         }
  34.         if (maxSchool != null) {
  35.             maxSchool.setSpace(maxSchool.getSpace() - children);
  36.         }
  37.  
  38.         maxSchool = Collections.max( list, new Comparator<School>() {
  39.             @Override
  40.             public int compare(School o1, School o2) {
  41.                 return o1.getEducation() - o2.getEducation();
  42.             }
  43.         } );
  44.         if (maxSchool != null) {
  45.             maxSchool.setSpace(maxSchool.getSpace() - children);
  46.         }
  47.         System.out.println( list );
  48. 	}
  49. }
  50.  
  51.  
  52. class School {
  53.  
  54.     private int education = 0;
  55.     private int space = 20;
  56.     private int cost = 0;
  57.     private String name = " ";
  58.  
  59.     public School(int education, int space, int cost, String name) {
  60.         this.cost = cost;
  61.         this.space = space;
  62.         this.education = education;
  63.         this.name = name;
  64.     }
  65.  
  66.     public int getEducation() {
  67.         return education;
  68.     }
  69.  
  70.     public void setEducation(int education) {
  71.         this.education = education;
  72.     }
  73.  
  74.     public int getSpace() {
  75.         return space;
  76.     }
  77.  
  78.     public void setSpace(int space) {
  79.         this.space = space;
  80.     }
  81.  
  82.     public int getCost() {
  83.         return cost;
  84.     }
  85.  
  86.     public void setCost(int cost) {
  87.         this.cost = cost;
  88.     }
  89.  
  90.     public String getName() {
  91.         return name;
  92.     }
  93.  
  94.     public void setName(String name) {
  95.         this.name = name;
  96.     }
  97.  
  98.     @Override
  99.     public String toString() {
  100.         return "School{" +
  101.                 "education=" + education +
  102.                 ", space=" + space +
  103.                 ", cost=" + cost +
  104.                 ", name='" + name + '\'' +
  105.                 '}';
  106.     }
  107. }
Success #stdin #stdout 0.21s 320832KB
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Standard input is empty
stdout
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[School{education=0, space=20, cost=0, name='Ugly'}, School{education=30, space=20, cost=50, name='Normal'}, School{education=50, space=-1, cost=100, name='Best'}]
https://ideone.com/zFdnDo
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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