Question

In the code shown above are two parts of two different exercises. HOW WE CAN HAVE BOTH OF THEM ON THE SAME CLASS BUT SO WE CAN RECALL them threw different methods. Thank you.

import java.util. Scanner; public class HM5 publi int end 1list. length; for (int i 0; i < end; i++) if (list[i] = list[j]) { static int[] eliminateDuplicates (int [ ] list){ For (int j i 1; j < end; j++) t int shiftLeft j; for (int k j+1; k < end; k++, shift Left++) list[shiftLeft] list[k]; end-- 10 j-}}} 11 int[] outlist 12 for (int i = 0; i< end; i++) 13 outlist[i] = list [i] ;} 14 return outlist; }{ Scanner in = new Scanner (System.in); 16 System.out.println (); System.out.println () ; 18 System.out.println () ; System.out.println (); System.out.println (" Enter 10 elements "); int n 10; int [] a new int [n]; 23 for(int i-0; i<10; i++) { a[i] in.nextInt ( ) ; } int [] output = eliminateDuplicates (a); 26 System.out.println (" \nOutput Elements : \n"); 27 for (int i: output){ 28 System.out.print(i" ");}} 29e public static int average (int [] array){ 30 int total = 0; 31 for (int x: array) 32 total + x; 33 return total array.length; } 34 public static double average (double[] array) 35 double total = 0; 36 for (double x: array) 37 total += x; 38 return total array. length; } 39 public static void main (String args[]) { 40 Scanner sc new Scanner(System.in); 41 double[] d new double [ 10] ; 42 System.out.println (" Enter 10 double values: ") 43 for (int i-0; i<10; i++) new int[end]; sc.nextDouble ( ) ; System.out.println ( "Average " average ( d) ) ; }} d[il

1-First exercise

import java.util.Scanner;
public class first {
public static int average(int[] array){
   int total = 0;
   for(int x: array)
       total += x;
   return total / array.length;
   }
public static double average(double[] array){
   double total = 0;
   for(double x: array)
       total += x;
   return total / array.length;
   }
public static void main(String args[]){
   Scanner sc = new Scanner(System.in);
   double[] d = new double[10];
   System.out.println("Enter 10 double values: ");
   for(int i=0; i<10; i++)
       d[i] = sc.nextDouble();
   System.out.println("Average = " + average(d));
   }
}

2-Second exercise

import java.util.Scanner;
public class second {
   public static int[] eliminateDuplicates(int[] list){
       int end = list.length;
       for (int i = 0; i < end; i++){
           for (int j = i + 1; j < end; j++){
               if (list[i] == list[j]){
                   int shiftLeft = j;
                   for (int k = j+1; k < end; k++, shiftLeft++){
                       list[shiftLeft] = list[k];
                       }
                   end--;
                   j--;
                   }
               }
           }
       int[] outlist = new int[end];
       for(int i = 0; i < end; i++){
           outlist[i] = list[i];
           }
       return outlist;
       }
   public static void main(String[] args){
       Scanner in = new Scanner(System.in);
       int n = 10;
       System.out.println("Enter 10 Elements \n");
       int[] a = new int[n];
       for(int i=0;i<n;i++){
           a[i] = in.nextInt();
           }
       int[] output = eliminateDuplicates(a);
       System.out.println("\nOutput Elements: \n");
       for (int i : output){
           System.out.print(i + " ");
           }
       }
   }

I need to put both these exercises under the same class. But I need them to be called from the main method I think. The idea is to have both of them under the same class. so I can execute each of them.

Answer 1

We can solve the above problem in the following way,

1. We can make the main functions of both the files as the first() and second() function in the final class.
2. We can call them using the new main function in the final class.

Following is the code for the same.

import java.util.Scanner;

public class HM5 {
   public static int average(int[] array){
   int total = 0;
   for(int x: array)
   total += x;
   return total / array.length;
   }
   public static double average(double[] array){
   double total = 0;
   for(double x: array)
   total += x;
   return total / array.length;
    }
   public static void first(){
   Scanner sc = new Scanner(System.in);
   double[] d = new double[10];
   System.out.println("Enter 10 double values: ");
   for(int i=0; i<10; i++)
   d[i] = sc.nextDouble();
   System.out.println("Average = " + average(d));
   }
   public static int[] eliminateDuplicates(int[] list){
int end = list.length;
for (int i = 0; i < end; i++){
for (int j = i + 1; j < end; j++){
if (list[i] == list[j]){
int shiftLeft = j;
for (int k = j+1; k < end; k++, shiftLeft++){
list[shiftLeft] = list[k];
}
end--;
j--;
}
}
}
int[] outlist = new int[end];
for(int i = 0; i < end; i++){
outlist[i] = list[i];
}
return outlist;
}
   public static void second(){
Scanner in = new Scanner(System.in);
int n = 10;
System.out.println("Enter 10 Elements \n");
int[] a = new int[n];
for(int i=0;i<n;i++){
a[i] = in.nextInt();
}
int[] output = eliminateDuplicates(a);
System.out.println("\nOutput Elements: \n");
for (int i : output){
System.out.print(i + " ");
}
}
   public static void main(String args[]) {
       System.out.println("Running the First Program");
       first();
       System.out.println("Running the Second Program");
       second();
   }

}

A snippet of the sample output:

kterminated> HM5 [Java Application] C:\Program Files\Java\jre1.8.0_171\bin\javaw.exe (Jun 26, 2019, 2:31:47 AM) Running the First Program Enter 10 double values: 12.0 14 25 63 89 54.0 45.3 52.5 63.6 12.0 Average Running the Second Program Enter 10 Elements 43.040000000000006 - 10 12 16 14 151312 14 78 96 Output Elements: 10 12 16 14 1513 78 96

That was a nice question to answer
Friend, If you have any doubts in understanding do let me know in the comment section. I will be happy to help you further.
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Thanks