title: How to solve variable might not have been initialized error
body: <p>I started studying for an exam and doing some practice programs with methods, and my mind is coming to a blank currently. I would like to know how I can initialize n1, n2, n3, and n4. I set them to 0 but the return statement returned only 0s.</p>
  
  <pre><code>public class LargestOfIntegers2
  {
      public static int findLargest(int n1, int n2, int n3, int n4)
      {
          Scanner scan = new Scanner(System.in);
          System.out.print("Enter the first integer --&gt; ");
          n1 = scan.nextInt();
          System.out.print("Enter the second integer --&gt; ");
          n2 = scan.nextInt();    
          System.out.print("Enter the third integer --&gt; ");
          n3 = scan.nextInt();    
          System.out.print("Enter the fourth integer --&gt; ");
          n4 = scan.nextInt();    
  
          if(n1&gt;n2 &amp;&amp; n1 &gt; n3 &amp;&amp; n1 &gt; n4)
              return n1;
          else if(n2 &gt; n1 &amp;&amp; n2 &gt; n3 &amp;&amp; n2 &gt; n4)
             return n2;
          else if(n3&gt;n1 &amp;&amp; n3&gt;n2 &amp;&amp; n3&gt;n4)
              return n3;
          else
              return n4;
      }
  
      public static void main(String[] args) {
          int n1, n2, n3, n4;
  
          findLargest(n1, n2, n3, n4);
          if(n1&gt;n2 &amp;&amp; n1 &gt; n3 &amp;&amp; n1 &gt; n4)
              System.out.println("Out of the numbers " + n1 + ", " + n2 + ", " + n3 + ", " + n4 + ", the largest integer is " + n1);
          else if(n2 &gt; n1 &amp;&amp; n2 &gt; n3 &amp;&amp; n2 &gt; n4)
              System.out.println("Out of the numbers " + n1 + ", " + n2 + ", " + n3 + ", " + n4 + ", the largest integer is " + n2);
          else if(n3&gt;n1 &amp;&amp; n3&gt;n2 &amp;&amp; n3&gt;n4)
              System.out.println("Out of the numbers " + n1 + ", " + n2 + ", " + n3 + ", " + n4 + ", the largest integer is " + n3);
          else
              System.out.println("Out of the numbers " + n1 + ", " + n2 + ", " + n3 + ", " + n4 + ", the largest integer is " + n4);
  
      }
  }
  </code></pre>