program java newton rapshon

package rapshon;
public class newton {
public static void main (String[] args){
double a,x;
double fa,fat,e;
int i;

a=1;

e=0.001;
System.out.println("\t\t\tProgram Newton- Raphson");
System.out.println("\t\t\t\tV 1.0");

for ( i=0;i<=1000;i++){
fa= (a*a*a)+(a*a)-10;

fat=(3*a*a)+(2*a);
System.out.println("Nilai dari X("+i+") \t= "+a);
a = a-(fa/fat);
System.out.println("Nilai dari fx \t\t= "+fa);
System.out.println("Nilai dari fx aksen \t= "+fat);
if (fa<0 ){
fa=(-fa);
if (fa<=e){
break;
}
} else{
if(fa<=e){
break;
}
}
System.out.println("");
}
}
}