Wrong result

[ladislav]

When I debug this isn’t mistakes.
When I start it this is one mistake.
Give me somebody advises please

public static void main(String[] args) {
int limit=1000;
boolean []prime=new boolean[limit+1];
prime[2]=true;

for(int i=2;i<=limit;i+ +)
{

prime=true;


if(i<2||(i%2==0 ))
prime=false;

for(int j=2;j<=limit-1;j++){

if(i%j==0)

prime=false;
break;
}

if(prime==true)

System.out.prin tln(i+"isPrime" );
else
System.out.prin tln(i+"isn'tPri me");
}
}
}

[horace1]

prime is an array so you need to specify the element you are addressing, e.g. to access element i
prime[i]=true;

code now looks like

public class t{

public static void main(String[] args) {
int limit=1000;
boolean []prime=new boolean[limit+1];
prime[2]=true;

for(int i=2;i<=limit;i++)
{

prime[i]=true;        // ** needs index [i]


if(i<2||(i%2==0))
prime[i]=false;

for(int j=2;j<=limit-1;j++){

if(i%j==0)

prime[j]=false;
break;
}

if(prime[i]==true)

System.out.println(i+"isPrime");
else
System.out.println(i+"isn'tPrime");
}
}
}

[ladislav]

Thank for your advice.

[r035198x]

There are some things in your codes that I find not neccessary. Compare for example with this:

 
public class t{
 public static void main(String[] args) {
  int limit = 1000;
  boolean []prime=new boolean[limit+1];
  for(int i=2;i<=limit;i++)
  {
   prime[i]=true;
   for(int j=2;j<i;j++){
	if(i%j==0)
	prime[i]=false;
	continue;
   }
   if(prime[i]==true)
	System.out.println(i+" isPrime**");
   else
	System.out.println(i+" isn'tPrime");
  }
 }
}

[ladislav]

Thank for your advice very much.