Uppgift 1
a)

  public void minMax() { 
    int small = month[0], large = month[0]; 
    for (int i=0; i large) 
        large = month[i]; 
      if (month[i] < small) 
        small = month[i];  
    } 
    System.out.println("Största värdet="+large+", minsta="+small); 
  } 

7
4
1
-2

if (x>=4 && x<=7)
   System.out.println("OK"); 

public class Sphere {
   
  private double r,x,y,z; 
   
  public Sphere() { 
     this.x=0.0; this.y=0.0; this.z=0.0; 
    this.r=1.0; 
  } 
   
  public Sphere(double inx, double iny, double inz, double inr) { 
    this.r=inr; this.x=inx; this.y=iny; this.z=inz; 
  } 
   
  public double volume() { 
    double v = 4.0/3.0*Math.PI*Math.pow(this.r,3); 
    return v; 
  } 
   
  public void setRadius(double inr) { 
    this.r=inr; 
  } 
   
  public double getRadius() { 
    return this.r; 
  } 
   
  public String toString() { 
    String s = "x="+x+", y="+y+", z="+z + ", r="+r; 
    return s; 
  } 
   
} 

public class TestSphere {
  
  public static void main(String[] arg) { 
    Sphere s1 = new Sphere(); 
    Sphere s2 = new Sphere(1.0,2.0,3.0,4.0); 
    s1.setRadius(14.0); 
    double v = s1.volume(); 
    System.out.println("volume = "+v); 
    double r = s2.getRadius(); 
    System.out.println("radius = "+r); 
    System.out.println(s2); 
  }   
}

import java.util.*;

public class Galaxer {
    private int[] ellips;
    private int[] medurs;
    private int[] moturs;

    public Galaxer() {
        ellips = new int[10000];
        medurs = new int[10000];
        moturs = new int[10000];
    }

    public void mataIn(int bildNummer, int galaxTyp) {
    if (galaxTyp==1) //elliptisk
        ellips[bildNummer-1]++;
    else if (galaxTyp==2) //spiral medurs
        medurs[bildNummer-1]++;
    else if (galaxTyp==3) //spiral moturs
        moturs[bildNummer-1]++;
    else
        System.out.println("Felaktigt val.");
    }

    public void elliptiskaGalaxer() {
        for (int i=0; i 3) {
            System.out.println("Felaktig galaxtyp.");   
            return -1;
        }
        for (int i=0; i=antalPers) antal++;
            }
            else if (galaxTyp==2) {//spiral medurs       
                if (medurs[i]>=antalPers) antal++;
            }
            else if (galaxTyp==3) {//spiral moturs        
                if (moturs[i]>=antalPers) antal++;
            }
        }
        return antal;
    }
}



Uppgift 4

public class SimuleraMatchning {
  
  public static void main (String[] arg ) {
    // Skapa en population som kan innehålla 50 individer
    Population pop = new Population(50);
    Individ ny;
    String id, id1, id2;
    int [] egenskaper = new int[10];
    
    int antal=50;
    for (int i=0; i=0) {
       // Ta reda på individernas identitet
       id1=pop.getIndivid(index1).getId();
       id2=pop.getIndivid(index2).getId();
       System.out.println(id1 + " och " + id2 + " passar bäst. " + 
                                 " Matchningsvärdet="+min);
    } // if

  }  // main
  
} // SimuleraMatchning



public class Population {
  private Individ[] grupp;
  private int antal;
  
  public Population () {
    this.grupp = new Individ[10];
    this.antal=0;
  }
  
  public Population (int maxAnt) {
    this.grupp = new Individ[maxAnt];
    this.antal=0;
  }
  
  public void läggIn(Individ ny) {
    this.grupp[this.antal]=ny;
    this.antal++;
  }
  
  public int matchningsVärde(int index1, int index2) {
    int v = this.grupp[index1].matchningsVärde( this.grupp[index2] );
    return v;
  }
  
  public Individ getIndivid(int index) {
     return this.grupp[index];
  }
}



public class Individ {
  
  private String id;
  private int[] egenskap = new int[10];
  
  public Individ() {
    id="NN";
  }
  
  public Individ(String ident, int[] värden) {
    this.id=ident;
    for (int i=0; i<10; i++) {
      egenskap[i]=värden[i];
    }
  }
  
  public int matchningsVärde(Individ annan) {
    int sum=0;
    for (int i=0; i<10; i++) {
      sum = sum + (int) (Math.pow( this.egenskap[i]-annan.egenskap[i], 2));
    }
    return sum;
  }
  
  public String getId() {
    return this.id;
  }
}