### Question:
Weight implements java.io.Serializable, Cloneable { @Override public String toString() { return String.valueOf(value); } Weight();  Weight(double value); final void inc(final double amount); final void dec(final double amount); final void setValue(double value); final double getValue(); @Override String toString(); @Deprecated void randomize(double min, double max); final T getTrainingData(); final void setTrainingData(T trainingData); @Override Object clone(); @Override int hashCode(); @Override boolean equals(Object obj); public double value; transient double weightChange; }### Answer:
@Test public void testToString() { System.out.println("toString"); Weight instance = new Weight(0.4); String expResult = "0.4"; String result = instance.toString(); assertEquals(expResult, result); }