/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static boolean ehPrimo(float nr) {
    if (nr < 2)
        return false;
    for (float i = 2; i <= (nr / 2); i++) {
        if (nr % i == 0)
        return false;
        System.out.println("nr = " + nr + "\ti = " +i);
    }
    return true;
}
 
public static void main(String[] args) {
    float x = 11f;
    if (ehPrimo(x)) // se for primo
        System.out.println(x + " e primo");
    else // se não for primo
        System.out.println(x + " não e primo");
}
}

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