Java Training Course/Example Programs: Difference between revisions

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* '''Word3Cond2''' - same, using a method, 2nd version
* '''Word3Cond2''' - same, using a method, 2nd version
* '''Word3Cond3''' - same, output on a single line, 3rd version
* '''Word3Cond3''' - same, output on a single line, 3rd version
===Filtering files===
A ''filter'' program reads a file, modifies all lines somehow, and writes them to another file.
* '''Filter1''' - read a file and replace the vowels in each line
* '''FilterNumber''' - read a file and replace all digits by their indonese number words
* '''FilterMulti3''' - read the modified output of ''Word3Cond3'' and colorize the known words
===Date and Calendars===
* '''Age''' - enter a birthday and compute the years, months ... seconds up to now

Revision as of 08:38, 13 November 2017

Start with a greeting

  • HelloWorld - output only

Arguments, assignment, elementary String and arithmetic operations

  • StringAdd - concatenate argument strings 4 times and print them out
  • IntAdd - add 4 integers 4 times and print them
  • IntMultiply - multiply 4 integers 4 times and print the product
  • LongMultiply - multiply 4 long numbers

Loops (while, for) and conditions (if), arrays ([])

  • PowersOf2 - print the powers of 2
    • PowersOf2Check - check for increasing sequence
    • PowersOf2Backwards - print sequence backwards
    • PowersOf2Array - print sequence from an array

Sequences of conditions with switch, if - then - else if ...

  • Selamat - print a greeting depending on the hour
  • SelamatSwitch - same with switch ... case ... default
  • Number10 - print the numbers 1..10
  • Number10Method - print the numbers using a class method
  • Month - print the indonese name of a month
  • Weekday - print the indonese name of a weekday

Sequences of words

  • Word1 - print all words with 1 letter
  • Word2 - print all words with 2 letters by 2 nested loops
  • Word3 - print all words with 3 letters by 3 nested loops
  • Word3Cond1 - print words with 3 letters and vowel/consonant conditions, first version
  • Word3Cond2 - same, using a method, 2nd version
  • Word3Cond3 - same, output on a single line, 3rd version

Filtering files

A filter program reads a file, modifies all lines somehow, and writes them to another file.

  • Filter1 - read a file and replace the vowels in each line
  • FilterNumber - read a file and replace all digits by their indonese number words
  • FilterMulti3 - read the modified output of Word3Cond3 and colorize the known words

Date and Calendars

  • Age - enter a birthday and compute the years, months ... seconds up to now