The command is "java", followed by the class name. For example, if your compiled class is called myclass.class, you give the command:
java myclass
You can open jar files with command prompt, Winrar or java.
Command Line Arguments---- I am trying to explain each word one by oneCommand ------perform specific taskex. When CMD is typed in run window and then press ok button then open a black screen that is called command prompt.Command Line ------on command prompt where command is supplied that is called command line.using command prompt dos commands are executed and java program is also executed using command prompt.for executing java program command is supplied with given syntaxjava java_class_name argument1 argument2.........Java--- is a commandjava_class_name ---name of java file which you want to executeargument1 argument2 --- are the values passing to java application from out sidethese argument1 argument2 are stored in string array argument of main method
The command is "javac".
compile:javac filename.javarun:java filename
It is 'Java program' to be precise, and the command is: 'javac sourcefilename.java'
The command to compile a Java program is "javac", followed by the class name (file name).
You can run a Java application from the command line using "java <name of the class>"
save it into a .java file. then open command prompt and navigate to your java bin directory. then type CD then your java bin directory. then type this . javac ProgName.java
Command line arguments are provided at the time of running the program. Example: Suppose that your program needs input name and its value then running it from commandline(DOS prompt) you provide the values after the program name java xyz name JAX(name is name and value is jax)
use the jar command like this: jar tvf mypackage.jar
Java program without mainWe need a main method for executing a program.But YES we can write a program without using main() method.TRICK 1 of 2 :: while writing applets in java we don't use main... we use init() method instead.TRICK 2 of 2 :: using 'static' we can write a program whic will execute successfully and output the desired message on screen. Here it is :: class Mohit{ static { System.out.println("This java program has run without the main method"); System.exit(0); } } -->save the program as Mohit.java to compile::javac Mohit.java (in command prompt) to run ::java Mohit(command prompt) output will be ::This java program has run without the main methodWhoa!!!!! we are done.;)
javausage: java path\FooBar will execute path\FooBar.class