Question

I need help because my brain cells cannot find what is wrong with this program!
Here’s the code

     import java.util.*;
      public class student{
      public static void main (String []args)

    { 
        Scanner sc=new Scanner(System.in);
        System.out.println("enter number elements");  //asking the user to enter the number of integer items 
        int num=sc.nextInt();
        int []myArray= new int[num];
        int maxValue=myArray[0];
        int minValue=myArray[0];
        int i;
        for( i=0; i<myArray.length;i++)
        {System.out.print("Enter element"+(i+1));  //asking the user to enter the items 
           myArray[i]=sc.nextInt();
        }

        for(i=0; i<myArray.length;i++)
        {System.out.print(myArray[i]);    //displaying the elements 
        }
        System.out.println(" ");
        for( i=myArray.length-1; i>=0;i--)
        {System.out.print(myArray[i]);      //displaying the elements in a backward order
        }
        System.out.println(" ");
        for( i=0; i<myArray.length;i++)
        {if(i%2==1)

           System.out.println(myArray[i]);               //displaying the elements in odd indices

        }

      for( i=0; i<myArray.length-1;i++)
        { if(myArray[i]>maxValue)
            {
                maxValue= myArray[i];           //finding the maximum


            }

        }
        System.out.println(maxValue+" "+(i+1));

        for( i=1; i<myArray.length-1;i++)
        { if( myArray[i]<minValue)
            {minValue= myArray[i];                //finding the minimum

            }
        }
       System.out.println(+minValue+" "+(i+1));



        System.out.println(myArray[0]);                          //displaying first item
        System.out.println( myArray[myArray.length-1]);          //displaying last item




        for( i=0; i<myArray.length;i++)
        {if(i%2==0)

          {  myArray[i]= myArray[i]*-1;                    //multiplying items in even indices by -1

        System.out.print( myArray[i]);}
    }
  }

}

The program does what’s in the comment, yet the minimum value is always zero even if I don’t enter it…I cannot figure out what’s the problem, so I’d appreciate your help!

Answer 1

You initialize you array. And then default values are given (every int is initialized 0)

   int []myArray= new int[num];
   int minValue=myArray[0];

it will be 0

so nothing smaller can be found than zero if you type in positive integers

Solution
First fill your array with the user input
THEN do

 int minValue=myArray[0];

Or use Integer.MIN_VALUE.