"Hello, Amigo!"
12
Task
Java Core,
level 9,
lesson 5
Locked
Even characters
Read 2 file names from the console.
Output to the second file all characters from the first file with an even ordinal number (ordinal numbers start with 1).
Example first file: text in file
Output in the second file: eti ie
Close the IO streams.
20
Task
Java Core,
level 9,
lesson 5
Locked
Counting words
Read a file name from the console.
The file contains words separated by punctuation marks.
Output to the console the number of times the word "world" appears in the file.
Close the streams.
20
Task
Java Core,
level 9,
lesson 5
Locked
Picking out numbers
Read 2 file names from the console.
Output to the second file all of the numbers from the first file.
Separate the numbers with a space.
Close the streams.
Example file content:
12 text var2 14 8v 1
Result:
12 14 1
12
Task
Java Core,
level 9,
lesson 5
Locked
Changing punctuation marks
Read 2 file names from the console.
The first file contains text.
Read the contents of the first file and change all the periods (".") to exclamation points ("!"). Then output the result to the second file.
Close the streams.
12
Task
Java Core,
level 9,
lesson 5
Locked
Punctuation
Read 2 file names from the console.
The first file contains text.
Read the contents of the first file, and remove all punctuation marks, including newline characters. Then output the result to the second file.
Close the streams.
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