java - Array Tester - Beginner -

i long time lurker , first time user of overflow, able guide me in right direction. there more issues program i'd admit, however, i'm getting there! main concerns @ moment below...

1. my first question looping program beginning. example, if user inputs integer < 1 program outputs error message. program stops there. how can loop prompt user input integer.

2. i having issue when program prompts user "enter list of () integers:" reason, have enter more integers should have to. in end, program takes appropriate number, pretty weird. (see program test - notice 1 through 5 integer 6 below that. hit enter after 5 program doesn't continue. continues when hit enter, type 6 , hit enter again. array below accurate though.)

3. let me know if should change else.

hopefully able post updated code when figured out! in advance if have read point! /** * n irwin - programming - lab 23 * array tester - 4/21/2016 */

import java.util.scanner;  public class arraytest {     public static void main(string[] args)    {        /**       * beginning of program , output.       */      system.out.println("       * * * array test * * *");      system.out.println("      written n irwin");      system.out.println();       /**       * scanner object.       */      scanner input = new scanner(system.in);       /**       * program output - user required provide input.       */      system.out.print("enter number of integers read: ");      int integernumber = input.nextint();      system.out.println();       /**       * program begins if integer greater or equal 1.       */      if(integernumber >= 1)      {       /**       * program output - user required provide input.       */      final int length = 100;      int[] values = new int [length];      int currentsize = 0;       system.out.print("enter list of " + integernumber + " integers: ");       /**       *        */      while (input.hasnextint() && currentsize < integernumber)      {          if (currentsize < values.length)          {              values[currentsize] = input.nextint();              currentsize++;             }         }       /**       * program output - integers in listed formatting.       */      system.out.println();      system.out.println("your integers are:");      system.out.println();       int listnumber = 1;       (int = 0; < currentsize; i++)      {          system.out.printf("%6d", listnumber);          system.out.println(". " + values[i]);          listnumber++;         }       /**       * program output - integers in listed formatting in reverse.       */      system.out.println();      system.out.println("your integers in reverse are:");      system.out.println();       int listreverse = 1;       (int = 0; < currentsize; i++)      {          system.out.printf("%6d", listreverse);          system.out.println(". " + values[i]);          listreverse++;         }       /**       * program output - total of integers.       */       double totalinteger = 0;       (int element : values)      {          totalinteger += element;         }       system.out.println();      system.out.println("the total of these " + integernumber + " numbers is: " + totalinteger);      system.out.println();       /**       * program output - average of integers.       */       double averageinteger = 0;       if (values.length > 0)      {          averageinteger = (totalinteger / integernumber);         }       system.out.print("the average of these " + integernumber + " numbers is: ");      system.out.printf("%.1f", averageinteger);      system.out.println();      system.out.println();       /**       * program output - minimum integer.       */       int minimuminteger = values[0];       for(int = 1; < values.length; i++)      {          if (values[i] < minimuminteger)          {              minimuminteger = values[i];             }         }       system.out.println("the minimum value in these " + integernumber + " numbers is: " + minimuminteger);      system.out.println();       /**       * program output - maximum integer.       */       int maximuminteger = values[0];       for(int = 1; < values.length; i++)      {          if (values[i] > maximuminteger)          {              maximuminteger = values[i];             }         }       system.out.println("the maximum value in these " + integernumber + " numbers is: " + maximuminteger);      system.out.println();       /**       * program output - pairs have been summed.       */      system.out.println("summing pairs of numbers produces: ");      system.out.println();     }      /**       * program produces error message if integer less 1.       */     else     {         system.out.println("error: integer entered invalid.");     } } } 

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***** program test *****  * * * array test * * * written nathan irwin  enter number of integers read: 5 

enter list of 5 integers: 1 2 3 4 5 6

your integers are:

 1. 1  2. 2  3. 3  4. 4  5. 5 

your integers in reverse are:

 1. 1  2. 2  3. 3  4. 4  5. 5 

the total of these 5 numbers is: 15.0

the average of these 5 numbers is: 3.0

the minimum value in these 5 numbers is: 0

the maximum value in these 5 numbers is: 5

summing pairs of numbers produces:

if want user mandatorily enters number > 1 can this:

int integernumber;  do{   integernumber = input.nextint();    if(integernumber < 1)      system.out.println("error"); }while(integernumber < 1); 

so input display until user enters number > 1.

for second question, can read full line of numbers , split (divide) string have read taking reference space put between each number. this:

string string = input.nextline(); //reads full line string[] parts = string.split(" "); //here divide string directly in array taking reference space between each number  (int = 0; < parts.length; i++) {    system.out.println(parts[i]); //you see each input have done } 

i expect helpful you. not doubt ask if have questions.