was ist falsch
package de.codegym.task.task04.task0427;
/*
Zahlen beschreiben
*/
import java.io.*;
public class Solution {
public static void main (String[] args) throws NumberFormatException, IOException {
BufferedReader BR = new BufferedReader(new InputStreamReader(System.in));
int a = Integer.parseInt(BR.readLine());
pruefeZahl(a);
}
public static void pruefeZahl(int a) {
if(istaI(a)==false) {
System.out.print("");
}else
if (istaN(a)==true) {
System.out.print("Negative"+" ");
}else {
if (a==0) {
System.out.print("Null");
}else {
System.out.print("Positive"+" ");
}
if (istaG(a)==true) {
System.out.print("gerade Zahl");
}else System.out.print("ungerade Zahl");
}
}
public static boolean istaI(int a) {
return 1<+a&&a<=999;
}
public static boolean istaN(int a) {
return a<0;
}
public static boolean istaG(int a) {
return a%2 ==0;
}
}