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To compile a Java file:

1. File background: D.h.java extends D.f.f.java

2. Absolute path: Javac-sourcepath D folder directory H.java full path

3. Relative path: CD to D (H.java directory), Javac-sourcepath D folder directory H.java

The SourcePath (source file path) is specified because D.h.java extends D.f.f.java, does not explain

4, in Chinese when the specified code: javac-encoding utf-8 H.java (here the encoding and save the file as specified in the encoding of the same)

Run the class file:

A,-CLASSPATH/-CP (exactly the same, specify temporary CP); Do not write the extension. class

B, Package is D, must write D.H, and D folder is not free. Absolute path to the H.class file: "CP"/d/h.class

1. Environment variable does not match JRE:CD to JRE\BIN>JAVA-CP D folder in the same directory D.H

2. Environment variable is JRE:JAVA-CP D folder directory D.H

(or CD-to-D folder in the same directory, such as the desktop, the desktop as a temporary CP,JAVA-CP. D.H)

(If the D folder is in the directory specified by the environment variable CP, Java D.H)

3, Java-jar jar file full path (-jar no CP one said)

Write a batch file, and when you run the. class file, specify that the current directory is temporary classpath:

JAVA-CP. H--Executes the h.class under the current directory

JAVA-CP. H--Executes the h.class in the current directory at the level of the directory

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