### Question:
DecisionTree { public String[] getAttributes() { return attributes; } DecisionTree();  DecisionTree(String trainSetPath, String testSetPath, Builder treeBuilder); String getTrainSetPath(); void setTrainSetPath(String trainSetPath); String getTestSetPath(); void setTestSetPath(String testFilePath); Builder getTreeBuilder(); void setTreeBuilder(Builder treeBuilder); String[] getAttributes(); void setAttributes(String[] attributes); TreeNode getTreeNode(); void setTreeNode(TreeNode treeNode); void buildTreeNode(); void buildTreeNode(Data data); Object[] classify(); Object[] classify(Data data); Object[] run(); static void main(String[] args);  }### Answer:
@Test public void buildWithSprint() { String path = "d:\\trainset_extract_10_l.txt"; Data data = DataLoader.loadWithId(path); DataHandler.fill(data, 1.0); Builder builder = new DecisionTreeSprintBuilder(); TreeNode treeNode = (TreeNode) builder.build(data); String p = "d:\\trainset_extract_1_l.txt"; Data testData = DataLoader.loadWithId(p); System.out.println("data attributes: " + data.getAttributes().length); System.out.println("testdata attributes: " + testData.getAttributes().length); DataHandler.fill(testData.getInstances(), data.getAttributes(), 1.0); Object[] results = (Object[]) treeNode.classifySprint(testData); ShowUtils.printToConsole(results); DataError dataError = new DataError(testData.getCategories(), results); dataError.report(); }