Java. Where's the extra level from?

[yajahira]

I don't understand why there's a lot of discharges coming out. at float, there's a nine instead of zero. code:

class sol_3_2{
    static double f(double x) {
        if (x > 2) return x;
        else return -x;
    }
public static void z(double a, double b, double h) {
    System.out.println("x\t" + "f(x)\t");
    for (double x = a; x <= b; x += h) {
        System.out.println(x + "\t" + f(x) );
    }
}

}
public class ex_3_2 {

public static void main(String[] args) {

double a = 4;

double b = 10;

double h = 0.7;

sol_3_2.z(a, b, h);

}

}

Conclusion:

[authera]

Use the formatted conclusion to 1 decimal place after the decimal point %5.1f:

System.out.printf("   x\t  f(x)%n");
for (double x = a; x <= b; x += h) {
    System.out.printf("%5.1f\t%5.1f%n", x, f(x));
}

   x      f(x)
  4.0     4.0
  4.7     4.7
  5.4     5.4
  6.1     6.1
  6.8     6.8
  7.5     7.5
  8.2     8.2
  8.9     8.9
  9.6     9.6