Not so floaty in Java

not-so-floaty.java

public class MyClass {
    public static void main(String args[]) {
      float x = 0.3f;
      float y = 0.2f;
      float z = x - y;

      System.out.println(z);
      
      float expectedZ =  0.1f;
      float delta = 0.00000001f;
      
      System.out.println(z == expectedZ);
      System.out.println(Float.floatToIntBits(z) == Float.floatToIntBits(expectedZ));
      System.out.println(Math.abs(z - expectedZ) <= delta);
    }
}