plz solve all of them they are easy question

Assignment-1 Object Oriented Programming Marks: 5 Note: Answer following questions precisely. Do not copy from other girls. Copied assignment will get zero marks. Q: What is the use of Keyword "this" in java? Q.Where in program "this" keyword is used? Q.Give an example code usig "this" Q. explain what task the keyword "this" performing in the above code