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POJava clear console error: java.io.IOException: Cannot run program "clear"
 

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  1. POJava clear console error: java.io.IOException: Cannot run program "clear"
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    <p>So I'm trying to make a game where a user enters 5 words, then the console is cleared before his opponent then has to guess the 5 words. I've not done anything like removing spaces or converting to a consistent case because this is only me trying to learn and I already know how to do that. The program executes perfectly despite getting this long list of errors when the system tries (and fails) to clear the console. Here's the output (note: I've also used "cls" as well as "clear" and both don't work):</p> <pre><code>| Player One Enter Words | Word 1: why Word 2: does Word 3: this Word 4: not Word 5: work java.io.IOException: Cannot run program "clear": CreateProcess error=2, The system cannot find the file specified at java.lang.ProcessBuilder.start(Unknown Source) at java.lang.Runtime.exec(Unknown Source) at java.lang.Runtime.exec(Unknown Source) at java.lang.Runtime.exec(Unknown Source) at OrigClass.main(OrigClass.java:18) Caused by: java.io.IOException: CreateProcess error=2, The system cannot find the file specified at java.lang.ProcessImpl.create(Native Method) at java.lang.ProcessImpl.&lt;init&gt;(Unknown Source) at java.lang.ProcessImpl.start(Unknown Source) ... 5 more | Player Two Guess Words | Guess 1: not Guess 2: work Guess 3: why Guess 4: does Guess 5: this Congrats. You Got A Perfect Score Of 5 </code></pre> <p>And here's my actual code:</p> <pre><code>import java.util.Arrays; import java.util.Scanner; class OrigClass{ public static void main(String[] args){ Scanner scanObj = new Scanner(System.in); String[] words; words = new String[5]; String[] guess; guess = new String[5]; System.out.println(" | Player One Enter Words | "); for(int count = 1; count &lt;= 5; count++){ System.out.print("Word " + count + ": "); words[count-1] = scanObj.nextLine(); } try{ Runtime.getRuntime().exec("clear"); } catch (Exception e){ e.printStackTrace(); } System.out.println(" | Player Two Guess Words | "); for(int count2 = 1; count2 &lt;= 5; count2++){ System.out.print("Guess " + count2 + ": "); guess[count2-1] = scanObj.nextLine(); } int score = 0; for(int count3 = 0; count3 &lt; 5; count3++){ if(Arrays.asList(words).contains(guess[count3])){ score++; } } if(score &gt;= 0 &amp;&amp; score &lt;= 2){ System.out.println("Unlucky. You Scored " + score); } else if (score &gt; 2 &amp;&amp; score &lt; 5){ System.out.println("Good Effort. You Scored " + score); } else { System.out.println("Congrats. You Got A Perfect Score Of " + score); } } } </code></pre> <p>If anyone knows how to prevent this error then I'd appreciate it a lot. If you have an alternative way to clear the console, that's great, but I'd like to know why this isn't working. </p> <p>Thanks</p>
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    1. COpossible duplicate of [Java: Clear the console](http://stackoverflow.com/questions/2979383/java-clear-the-console)
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    2. CO`Runtime.getRuntime().exec("clear");` tries to run a program called `clear` - it can't find it and gives you an exception.
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