Create Spark DataFrame from string column

how to create spark Data Frame from a string value in java can be done in few steps like below

Here are some code in java programming to create data frame with a string column, since we are not doing any operation on string column so it will go as single column only.

String input_string = "anydataflow";

List<Row> input_list=new ArrayList<Row>();

input_list.add(RowFactory.create(input_string));

List<org.apache.spark.sql.types.StructField> listOfStructField=
        new ArrayList<org.apache.spark.sql.types.StructField>();

listOfStructField.add
        (DataTypes.createStructField("test", DataTypes.StringType, true));

StructType structType=DataTypes.createStructType(listOfStructField);

Dataset<Row> df1 = sparkSession.createDataFrame(input_list,structType);

df1.show(false);

df1.printSchema();