cdm/src/main/java/ucar/ma2/ArrayFloat.java
protected void copyFrom1DJavaArray(IndexIterator iter, Object javaArray) {
    float[] ja = (float []) javaArray;
    for (float aJa : ja) iter.setFloatNext(aJa);
  }
protected void copyFrom1DJavaArray(IndexIterator iter, Object javaArray) {
    float[] ja = (float []) javaArray;
    for (float aJa : ja) iter.setFloatNext(aJa);
  }
copy from javaArray to storage using the iterator: used by factory( Object);