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  1. #1
    New Coder
    Join Date
    Jan 2012
    Thanked 0 Times in 0 Posts

    Reading in integers into Array

    I'm trying to read integers into my array but I'm getting an error. What am I doing wrong?

    import java.util.Scanner;
    public class array {

    public static void main(String[] args) {

    int[] grades;
    int size = 5;
    grades = new int[size];

    System.out.println("Please enter 5 unique numbers");
    Scanner keyboard = new Scanner(System.in);
    System.out.println("Please enter the first unique numbers");
    int[0] grades = keyboard.nextInt();
    System.out.println("Please enter the second numbers");
    int[1] grades
    int second = keyboard.nextInt();
    System.out.println("Please enter the third numbers");
    int third = keyboard.nextInt();
    System.out.println("Please enter the fourth numbers");
    int fourth = keyboard.nextInt();
    System.out.println("Please enter the fifth numbers");
    int fifth = keyboard.nextInt();



  • #2
    Senior Coder alykins's Avatar
    Join Date
    Apr 2011
    Thanked 206 Times in 205 Posts
    public class demo {
    	public static void main(String[] args) throws IOException {
    		int[] grade = new int[5];
    		Scanner keyboard = new Scanner(System.in);
    		Boolean validate = false;
    		System.out.println("Please Enter 5 Unique numbers...");
    		for(int i=0; i<grade.length;i++)
    			validate = false;
    			System.out.printf("Please enter the %d number\n", i+1);
    				   grade[i] = keyboard.nextInt();
    				   for(int j=0; j< i; j++)
    					   if(grade[i] == grade[j])
    						   throw new Exception();
    				   validate = true;
    			   catch(Exception ex)
    				   System.out.println("That number already exists...\nPlease choose another number.");
    		System.out.println("All done, the numbers are...");
    		for(int g : grade)
    			System.out.printf("%d\n", g);

    I code C hash-tag .Net
    Reference: W3C W3CWiki .Net Lib
    Validate: html CSS
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