Java

karengsh wrote:

May I know how did you identify the error?

org.apache.jasper.JasperException: An exception occurred processing JSP page /processAddMember.jsp at line 34

34: strType = request.getParameter("txtMember").trim();

root cause

java.lang.NullPointerException

<br />
ArrayList <schedule> POP=new  ArrayList <schedule>();			<br />
		for(int i=0;i<10;i++)<br />
	    		POP.add(generate_schedule());<br />
<br />
ArrayList <schedule> TMP=new ArrayList <schedule> ();<br />
	    		<br />
	    		<br />
	    		for(int j=0;j < NPOP.size()/2;j++)<br />
	    		{<br />
	    			schedule s1=NPOP.get(j);<br />
	    			<br />
	    			schedule s2=NPOP.get(j+(POP.size()/2));<br />
	    			<br />
	    			Random rand=new Random();<br />
	    	        double r=rand.nextDouble();<br />
	    			if(r<=CrossOver_prob)<br />
	    			{<br />
	    				ArrayList <schedule> result=new ArrayList <schedule>();<br />
	    				result=crossover(s1,s2);<br />
	    				TMP.add(result.get(0));<br />
	    				TMP.add(result.get(1));<br />
	    			}<br />
	    			else<br />
	    			{<br />
	    				TMP.add(s1);<br />
		    			TMP.add(s2);<br />
	    			}<br />
	    			<br />
	    		}<br />
<br />
for(int j=0;j < TMP.size();j++)<br />
	    		{<br />
	    			System.out.println("schedule"+j);<br />
	    			Random rand=new Random();<br />
	    	                double r=rand.nextDouble();<br />
	    			if(r<=Mutation_prob)<br />
	    				POP.add(Mutation(TMP.get(j)););<br />
	    			else<br />
	    				POP.add(TMP.get(j));<br />
	    		}

/**
 * Example java program
 * Changelog:
 * 4/25/2008
 *  -Original post by SpacixOne
 * 4/30/2008 
 *  -Updated Exception handler from Greeeg's suggestion.
 *  -Changed to more appropriate namespace
 * 11/2/2009
 *  - Ported original code from C# to java
 */

package NeedsCode;

/**
 * Example java program
 * @author anon
 */
public class Main {

    /**
     * Main entry point for program.
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        throw new UnsupportedOperationException(
                "The program code needs to be implemented.");
    }
}

yogeshs wrote:

But If I Executes Jar file separately then Its opening but when I tries to open file then It is not opening.