javac 명령어를 찾을 수 없다는 문구가 아래와 같이 하단에 나온다.
1. 문제 현상 :
2. 문제 해결 : 아래와 같이 명령어를 입력한다.The program 'javac' can be found in the following packages:
* openjdk-6-jdk
* ecj
* gcj-4.4-jdk
* gcj-4.3
* jikes-classpath
* jikes-kaffe
* kaffe
* sun-java6-jdk
Try: sudo apt-get install <selected package>
javac: command not found
3. 다음과 같이 터미널에서 javac 을 입력하여 설치가 잘 이루어졌는지 확인해 보자$ sudo apt-get install sun-java6-jdk
$ javac
Usage: javac <options> <source files>
where possible options include:
-g Generate all debugging info
-g:none Generate no debugging info
-g:{lines,vars,source} Generate only some debugging info
-nowarn Generate no warnings
-verbose Output messages about what the compiler is doing
-deprecation Output source locations where deprecated APIs are used
-classpath <path> Specify where to find user class files and annotation processors
-cp <path> Specify where to find user class files and annotation processors
-sourcepath <path> Specify where to find input source files
-bootclasspath <path> Override location of bootstrap class files
-extdirs <dirs> Override location of installed extensions
-endorseddirs <dirs> Override location of endorsed standards path
-proc:{none,only} Control whether annotation processing and/or compilation is done.
-processor <class1>[,<class2>,<class3>...]Names of the annotation processors to run; bypasses default discovery process
-processorpath <path> Specify where to find annotation processors
-d <directory> Specify where to place generated class files
-s <directory> Specify where to place generated source files
-implicit:{none,class} Specify whether or not to generate class files for implicitly referenced files
-encoding <encoding> Specify character encoding used by source files
-source <release> Provide source compatibility with specified release
-target <release> Generate class files for specific VM version
-version Version information
-help Print a synopsis of standard options
-Akey[=value] Options to pass to annotation processors
-X Print a synopsis of nonstandard options
-J<flag> Pass <flag> directly to the runtime system
4. javac 명령어를 이용한 컴파일
a. 예제 파일 생성 (HelloWorldApp.java)
b. 예제 소스 입력$ vi HelloWorldApp.java
c. 소스 확인class HelloWorldApp{
public static void main(String[] args) {
System.out.println("Hello World!");
}
}
d. javac 을 이용한 컴파일$ ls
HelloWorldApp.java
e. HelloWorldApp.class 파일이 생성되었는지 확인$ javac HelloWorldApp.java
f. 실행$ ls
HelloWorldApp.class HelloWorldApp.java
5. The end.$ java HelloWorldApp
Hello World!
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