Examples of java.util.Random.nextFloat()

java.util.Random.nextFloat()
Returns the next pseudorandom, uniformly distributed {@code float}value between {@code 0.0} and {@code 1.0} from this randomnumber generator's sequence.
The general contract of {@code nextFloat} is that one{@code float} value, chosen (approximately) uniformly from therange {@code 0.0f} (inclusive) to {@code 1.0f} (exclusive), ispseudorandomly generated and returned. All 2²⁴ possible {@code float} valuesof the form m x 2^-24, where m is a positive integer less than 2²⁴ , are produced with (approximately) equal probability.
The method {@code nextFloat} is implemented by class {@code Random}as if by:
```
  {@code}public float nextFloat()  return next(24) / ((float)(1 << 24)); }}
```
The hedge "approximately" is used in the foregoing description only because the next method is only approximately an unbiased source of independently chosen bits. If it were a perfect source of randomly chosen bits, then the algorithm shown would choose {@code float}values from the stated range with perfect uniformity.
[In early versions of Java, the result was incorrectly calculated as:
```
  {@code return next(30) / ((float)(1 << 30));}
```
This might seem to be equivalent, if not better, but in fact it introduced a slight nonuniformity because of the bias in the rounding of floating-point numbers: it was slightly more likely that the low-order bit of the significand would be 0 than that it would be 1.] @return the next pseudorandom, uniformly distributed {@code float}value between {@code 0.0} and {@code 1.0} from thisrandom number generator's sequence

  @Test
  public void testSplitOccursRoaring()
  {
    Random rand = new Random();
    for (int i = 0; i < 100; i++) {
      roaringtree.insert(new float[]{rand.nextFloat(), rand.nextFloat()}, i);
    }


    Assert.assertTrue(roaringtree.getRoot().getChildren().size() > 1);
  }

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  @Test
  public void testSplitOccursRoaring()
  {
    Random rand = new Random();
    for (int i = 0; i < 100; i++) {
      roaringtree.insert(new float[]{rand.nextFloat(), rand.nextFloat()}, i);
    }


    Assert.assertTrue(roaringtree.getRoot().getChildren().size() > 1);
  }

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    rects = new Rectangle[numRects];
    Random r = new Random();
    r.setSeed(0);
    for (int i = 0; i < numRects; i+=1) {
      rects[i] = new Rectangle(r.nextFloat(), r.nextFloat(), r.nextFloat(), r.nextFloat());
    }
    
    run(1, 2, numRects);
    run(1, 3, numRects);
    run(2, 4, numRects);

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    rects = new Rectangle[numRects];
    Random r = new Random();
    r.setSeed(0);
    for (int i = 0; i < numRects; i+=1) {
      rects[i] = new Rectangle(r.nextFloat(), r.nextFloat(), r.nextFloat(), r.nextFloat());
    }
    
    run(1, 2, numRects);
    run(1, 3, numRects);
    run(2, 4, numRects);

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    rects = new Rectangle[numRects];
    Random r = new Random();
    r.setSeed(0);
    for (int i = 0; i < numRects; i+=1) {
      rects[i] = new Rectangle(r.nextFloat(), r.nextFloat(), r.nextFloat(), r.nextFloat());
    }
    
    run(1, 2, numRects);
    run(1, 3, numRects);
    run(2, 4, numRects);

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    rects = new Rectangle[numRects];
    Random r = new Random();
    r.setSeed(0);
    for (int i = 0; i < numRects; i+=1) {
      rects[i] = new Rectangle(r.nextFloat(), r.nextFloat(), r.nextFloat(), r.nextFloat());
    }
    
    run(1, 2, numRects);
    run(1, 3, numRects);
    run(2, 4, numRects);

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      item.getItemProperty(Timeline.PropertyId.TIMESTAMP).setValue(
          cal.getTime());


      // set the value property
      item.getItemProperty(Timeline.PropertyId.VALUE).setValue(
          generator.nextFloat());


      cal.add(Calendar.DAY_OF_MONTH, 1);
    }
    return container;
  }

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      //set the time stamp property
      item.getItemProperty(Timeline.PropertyId.TIMESTAMP).setValue(cal.getTime());
      
      //set the value property
      item.getItemProperty(Timeline.PropertyId.VALUE).setValue(generator.nextFloat());
      
      cal.add(Calendar.DAY_OF_YEAR, 1);
    }
    return container;
  }

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          @Override
          public void buttonClick(ClickEvent event) {
            Random r = new Random();


            mark5.setLatLng(new Point2D.Double(
                22.8 + r.nextFloat() / 10, 60.4522 + r
                    .nextFloat() / 10));


            googleMap.requestRepaint();
          }
        }));

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          @Override
          public void buttonClick(ClickEvent event) {
            Random r = new Random();


            mark5.setLatLng(new Point2D.Double(
                22.8 + r.nextFloat() / 10, 60.4522 + r
                    .nextFloat() / 10));


            googleMap.requestRepaint();
          }
        }));

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