javac java file path

1.package must correspond to file path

package is com.challenger

path must be com/challenger/

 

2.javac use -d to output classes into file path automaticly

javac -d classes src/MyClass.java

 

3.javac use -sourcepath to tel where to find source code file

javac -sourcepath src -d classes src/MyClass.java

 

4.java use -classpath to find classes

java -classpath MyClass

 

 

for example:

SelectSort is one class of com.challenger package

mikeli@dell-pc:~/code/algo_java$ javac -sourcepath src -d classes src/com/challenger/SelectSort.java

mikeli@dell-pc:~/code/algo_java$ java -classpath classes com.challenger.SelectSort