What will be the result of the following statements? FileInputStream fstream = new FileInputStream("Input. dat"); DataInputStream inFile = new DataInputStream(fstream); The inFile variable will reference an object that is able to read text data from the Input. dat file. The inFile variable will reference an object that is able to read random access data from the Input. dat file. The inFile variable will reference an object that is able to write binary data to the Input. dat file. The inFile variable will reference an object that is able to read binary data from the Input. dat file.

The answer is the last choice that is "Choice D".

Explanation:

In the given question the numbering of the choices is missing which can be defined in the attached file please find it.

In the above-given java program code, a "FileInputStream" class is used that creates an object that is "fstream", for input the file that is "Input.dat". In the next line, the "DataInputStream" class is used that creates an object that is "inFile", which is used as a reference an object and allow the user to read the binary data from the file.

answer: when the substance contain the two parts (polar and non-polar) like soap.

explanation:

soap is produced from the basic hydrolysis of ester "saponification", it is considered as a salt of hydrocarbons. the soap molecule contains the two parts: a polar group   (-coo-na+) and a non-polar group (r-hydrocarbon part). the polar group is called the head and the tail is the non-polar group. the polar group is hydrophilic in nature (water loving) and the non-polar group is hydrophobic in nature (water repelling).the polar/non-polar nature of a substance is useful that it can dissolve the non-polar substances by the polar part and also can dissolve the polar substances by the non-polar part. it commonly used in detergents and soaps.