Thread: Program not printing anything II

I am in the same situation and need help with the same problem. What you have for code is everything I have had since last week and it still prints "25" Ive tried fixing it many times and nothing had changed.

It is printing 25 because in your for loop the if statement doesnt have brackets around the lines after it. I recommend always putting brackets around your blocks. You will avoid many of these errors in your future. Your largestindex variable is getting "a" which will always end in 25 because it is being set every time. IF STATEMENTS WITHOUT BRACKETS ONLY CONTROL ONE LINE DIRECTLY AFTER THEM. Use brackets...for the love of god use brackets. The sooner you do this the happier you'll be.

For those still looking to figure this out, i have the program working in my possession. I will help you work through your issues as you present questions, but i'm not just going to give you the answer. Work for it! If you have a due date, set up a time you can be on here and i'll make sure i'll be on at that time and help you through it till we're done.

public class LetterProfile
{
int scoreboard[] = new int [26];
private int index;
private int next;
private int largest =0;
private int largestindex =0;

public void countChars (String s)
{
// changes the input text to lower case letters
s = s.toLowerCase();
//
char a = 'a';
for (int i =0;i < s.length();i++)
{
int next = (int)s.charAt(i)-(int) a;
if ( next<26 && next >= 0)
scoreboard[next]++;
}
}
public void scoreLine (String line)
{
int index = line.length();
for (int j = 0; j<index; j++)
{
scoreboard[j]++;
System.out.println(j + scoreboard[j]);
}
}
public int largestLength()
{
int largest = 0;
int largestindex = 0;
for(int a = 0; a<26; a++)
{
if(scoreboard[a]>largest)
largest = scoreboard[a];
largestindex = a;
}
return (char)largestindex;
}
public int printResults()
{
largestLength();
return largestLength();
}
}



I have this thus far and when I run it the java input bars come up and then when I type things into it nothing is returned

That's where my post went...i'll go grab my other post...

--- Update ---

Your printResults function does not print anything. You need to print what your longestLength() function is returning. And dont call it twice for that matter. Call it once, save it to a variable if necessary, then display it.

I don't understand how to change this at all. I understand that I shouldn't have printResults function because it is simply not doing anything but I don't get how to change it. Sorry so new to programming

I'm really confused too. Here is a simple program that has a "max" method and tells you the larger integer that you input. Also, why does this program work in 1 file, but the letter frequency needs 2 files?

import java.util.Scanner;  
 
public class MaxNumber {
 
   public static void main(String[] args) 
   {
     Scanner scan = new Scanner(System.in);
      int i = scan.nextInt();
      int j = scan.nextInt();
      int k = max(i, j);
      System.out.println("The maximum between " + i +
                    " and " + j + " is " + k);
   }
 
 
   public static int max(int num1, int num2) {
      int big;
      if (num1 > num2)
         big = num1;
      else
         big = num2;
 
      return big; 
 
   }
}

I have this for my driver class... But I don't know what to put so that it will print out the number count...I have made is so that there is a 2 line input

import java.util.Scanner;

public class LetterDriver{
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
String tScan= " ";
while(tScan.length() > 0){
tScan = scan.nextLine();
}
}

}

import java.util.Scanner;
 
public class LetterDriver{
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
String tScan= " ";
while(tScan.length() > 0){
tScan = scan.nextLine();
}
}
 
}

That is what my professor said it is a scanner object... and the while loops scans the lines of text?

 
import java.util.Scanner;
 
public class LetterDriver{
  public static void main(String[] args){
    Scanner scan = new Scanner(System.in);
    String tScan= " ";
    while(tScan.length() > 0){
      tScan = scan.nextLine();
    }
  }
 
}

sorry when I coped it lines got shifted. The reason for the scan lines is that it will scan the text that is inputed then will return letters and count of how many times they appear