UNIT 7

//7.1.1

import java.util.Scanner;import java.util.ArrayList;public class U7_L1_Activity_One{public static void main(String[] args){Scanner scan=new Scanner(System.in);ArrayList<String> words=new ArrayList<String>();String entered;System.out.println("Please enter words, enter STOP to stop the loop.");do{entered=scan.next();if(entered.equals("STOP")){break;}words.add(entered);}while(true);System.out.printf("\n%d\n%s\n",words.size(),words);if(words.size()>2){words.remove(0);words.remove(words.size()-1);}System.out.print(words);}}

//7.2.1

import java.util.Scanner;import java.util.ArrayList;public class U7_L2_Activity_One{public static void main(String[] args){Scanner scan=new Scanner(System.in);ArrayList<String> list=new ArrayList<String>();String word;System.out.println("Please enter words, enter STOP to stop the loop.");do{word=scan.next();if(word.equals("STOP")){break;}list.add(word);}while(true);System.out.println("\n"+list);for(int i=list.size()-1;i>=0;i--){System.out.println(list.get(i));}}}

//7.2.2

import java.util.ArrayList;public class U7_L2_Activity_Two{public static double average(ArrayList<Double> nums){double sum=0;for(Double num:nums){sum+=num;}return sum/(double)nums.size();}}

//7.2.3

import java.util.ArrayList;public class U7_L2_Activity_Three{public static ArrayList<Integer> getOdds(ArrayList<Integer> vals){ArrayList<Integer> odds=new ArrayList<Integer>();for(Integer num:vals){if(num%2!=0){odds.add(num);}}return odds;}}

//7.3.1

import java.util.ArrayList;public class U7_L3_Activity_One{public static void shiftRight(ArrayList<String> objects){String last=objects.get(objects.size()-1);for(int i=objects.size()-1;i>0;i--){objects.set(i,objects.get(i-1));}objects.set(0,last);}}

//7.3.2

import java.util.ArrayList;public class U7_L3_Activity_Two{public static void printStatistics(ArrayList<Integer> nums){int sum=0;ArrayList<Integer> occurences=new ArrayList<Integer>();ArrayList<Integer> count=new ArrayList<Integer>();for(Integer num:nums){sum+=num;}System.out.printf("Sum: %d\nAverage: %f\nMode: ",sum,((double)sum/(double)nums.size()));Integer[] num=new Integer[nums.size()];num=nums.toArray(num);for(int check:num){if(!count.contains(check)){count.add(check);occurences.add(occurence(num,check));}}int highest=0;for(Integer check:occurences){if(check>highest){highest=check;}}Integer[] occ=new Integer[occurences.size()];occ=occurences.toArray(occ);if(occurence(occ,highest)>=2){System.out.print("no single mode");}else{System.out.print(count.get(occurences.indexOf(highest)));}}public static int occurence(Integer arr[],Integer x) {int res=0;for(int i=0;i<arr.length;i++){if(x.equals(arr[i])){res++;}}return res;}}

//7.4.1

import java.util.ArrayList;public class U7_L4_Activity_One{public static int countInitial(ArrayList<String> list, String letter){int count=0;for(String word:list){if(word.toLowerCase().startsWith(letter.toLowerCase())){count++;}}return count;}}

//7.4.2

import java.util.ArrayList;public class U7_L4_Activity_Two{public static int searchLast(ArrayList<String> objects,String target){return objects.lastIndexOf(target);}}

//7.5.1

import java.util.Arrays;public class U7_L5_Activity_One{public static void sortAndPrint(String[] arr){String tmp;for(int i=0;i<arr.length;i++){for(int j=0;j<arr.length-1;j++){if(arr[j].compareTo(arr[j+1])>0){tmp=arr[j];arr[j]=arr[j+1];arr[j+1]=tmp;}}}for(String word:arr){System.out.print(word+" ");}}}

//7.5.2

import java.util.ArrayList;import java.util.Collections;public class U7_L5_Activity_Two{public static void selectSort(ArrayList<Integer> list){for(int i=0;i<list.size();i++){for(int j=0;j<list.size()-1;j++){if(list.get(j)>list.get(j+1)){Collections.swap(list,j,j+1);}}}}}

//7.6.1

public class U7_L6_Activity_One{public static void sortAndPrint(String[] arr){for(int i=1;i<arr.length;i++){int x=i;for(int j=i-1;j>=0;j--){if(arr[j].compareTo(arr[x])>0){String tmp=arr[j];arr[j]=arr[x];arr[x]=tmp;x--;}}for(String word:arr){System.out.print(word+" ");}System.out.println();}}}

//7.6.2

import java.util.ArrayList;import java.util.Collections;public class U7_L6_Activity_Two{public static int insertSort(ArrayList<Integer> list){int count=0,x=0;for(int i=1;i<list.size();i++){x=i;for(int j=i-1;j>=0;j--){if(list.get(x)<list.get(j)){Collections.swap(list,j,x);count++;x--;}else{count++;break;}}}return count;}}

//Game Wheel

/*GameWheel CLASS*/import java.util.ArrayList;import java.util.Collections;public class GameWheel{private ArrayList<Slice> slices;private ArrayList<Slice> red=new ArrayList<Slice>();private ArrayList<Slice> blue=new ArrayList<Slice>();private ArrayList<Slice> black=new ArrayList<Slice>();private int currentPos;public String toString(){String list="";for(int i=0;i<slices.size();i++){list+=i+" - Color: "+slices.get(i).getColor()+", Prize Amount: $"+slices.get(i).getPrizeAmount()+"\n";}return list;}public void scramble(){separate();Collections.shuffle(red);Collections.shuffle(blue);Collections.shuffle(black);returnToSlices();}public void sort(){separate();int x=0;for(int i=1;i<red.size();i++){x=i;while(x>0&&red.get(x).getPrizeAmount()<red.get(x-1).getPrizeAmount()){Collections.swap(red,x,x-1);x--;}}for(int i=1;i<blue.size();i++){x=i;while(x>0&&blue.get(x).getPrizeAmount()<blue.get(x-1).getPrizeAmount()){Collections.swap(blue,x,x-1);x--;}}for(int i=1;i<black.size();i++){x=i;while(x>0&&black.get(x).getPrizeAmount()<black.get(x-1).getPrizeAmount()){Collections.swap(black,x,x-1);x--;}}returnToSlices();}public void separate(){for(Slice slice:slices){switch(slice.getColor().charAt(2)){case 'a':black.add(slice);break;case 'u':blue.add(slice);break;default:red.add(slice);}}}public void returnToSlices(){for(int i=0;i<20;i++){if(i==0||i>4&&i%5==0){slices.set(i,black.get(0));black.remove(0);}else if(i%2==0){slices.set(i,blue.get(0));blue.remove(0);}else{slices.set(i,red.get(0));red.remove(0);}}}public GameWheel(){this(getStandardPrizes());}public GameWheel(int[] prizes){currentPos=0;slices=new ArrayList<Slice>();for(int i=0;i<20;i++){int pa=0;String col="blue";if(i<prizes.length){pa=prizes[i];}if(i%5==0){col="black";}else if(i%2==1){col="red";}slices.add(new Slice(col,pa));}}public Slice spinWheel(){int power=(int)(Math.random()*50+1);int newPos=(currentPos+power)%slices.size();currentPos=newPos;return slices.get(currentPos);}public Slice getSlice(int i){int sliceNum=i;if(i<0||i>19){sliceNum=0;}return slices.get(sliceNum);}private static int[] getStandardPrizes(){int[] arr=new int[20];for(int i=0;i<20;i++){if(i%5==0){arr[i]=i*1000;}else if(i%2==1){arr[i]=i*100;}else{arr[i]=i*200;}}return arr;}}