Thread: help please i don't understand why the count is not adding .

i am trying to make a program that get input value 1-200 from user.
however i would like to make the program to show warning if the input number is not within the range of 1-200. in the end i would like to show the amount of number according to its interval (i.e less 50, 51-100 and so on)

import java.util.Scanner;
 
class test {
public static void main (String[] args)
{
int number[]= new int[5];
int number2[]= new int[5];
int a=0,b=0,c=0,d=0,i=0;
int a2=0,b2=0,c2=0,d2=0,j=0;
int a3,b3,c3,d3;
Scanner input = new Scanner(System.in);
 
for (i=0;i<5;i++)
{ System.out.println("Enter Number between 1-200 :");
number[i] = input.nextInt();
if (number[i] <1 || number[i] > 200)
{
for (j=0;j<1;j++)
{
System.out.println("Number is invalid, please Enter a New number");
number2[j] = input.nextInt();
j++;
if (number2[j] >=1 && number2[j] <50)
a2++;
else if (number2[j] >=50 && number2[j] <101)
b2++;
else if (number2[j] >= 101 && number2[j] <151)
c2++;
else if (number2[j] >= 151 && number2[j] <201)
d2++;
}
 
}
if (number[i] >=1 && number[i] <50)
a++;
else if (number[i] >=50 && number[i] <101)
b++;
else if (number[i] >= 101 && number[i] <151)
c++;
else if (number[i] >= 151 && number[i] <201)
d++;
}
a3 = a +a2;
b3 = b +b2;
c3 = c +c2;
d3 = d +d2;
System.out.println("Less than 50 :" +a3 );
System.out.println("50-100 :" +b3);
System.out.println("101-150 :" +c3 );
System.out.println("151-200 :" +d3);
 
}
}

What are you having problems with?
As far as I see you already did that yourself. Are you getting any kinds of errors or unexpected behavior?

Originally Posted by Cornix

What are you having problems with?
As far as I see you already did that yourself. Are you getting any kinds of errors or unexpected behavior?

the value didn't add. but i am trying now using method instead. but i have so many errors. i have no idea what to do.

 
    import java.util.Scanner;
    class JavaStatistic {
    public static void main (String[] args){
    int i=0;
    int number[]= new int[5];
    Scanner input = new Scanner(System.in);
    for (i=0;i<5;i++){
    System.out.println("Enter Number between 1-200 :");
    number[i] = input.nextInt();
    if (number[i] <1 || number[i] > 200){
    System.out.println("Number is invalid, please Enter a New number");
    i--;
    }
    else{
    number[1] = displayStatistics(int[] input)
    }
    int statistics[] = displayStatistics(number);
    System.out.println("Less than 50 :" +statistics[0]);
    System.out.println("50-100 :" +statistics[1]);
    System.out.println("101-150 :" +statistics[2]);
    System.out.println("151-200 :" +statistics[3]);
    }
    }
    void displayStatistics(int [] input ){
    int count[] ={0,0,0,0};
    { //this loop will be entered when the input is in the correct range{
    int i;
    if (number[i] >=1 && number[i] <50)
    count[0]++;
    else if (number[i] >=50 && number[i] <101)
    count[1]++;
    else if (number[i] >= 101 && number[i] <151)
    count[2]++;
    else if (number[i] >= 151 && number[i] <201)
    count[3]++;
    System.out.println("Enter Number between 1-200 :");
    return count;
    }
    }
    }

Post the errors you want help with and the code that goes with the errors. Please post properly indented code. Code with lines all aligned at column zero is hard to read.