First Java Program || How to make and execute a java program using Notpad and cmd (in HINDI)
The requirement for Java First Example :
1) Install the JDK if you don't have download and installed it
Download JDK : https://www.oracle.com/in/java/techno...
2) Set path of the jdk/bin directory.
Watch video to set a path : • How to Download and install Java JDK and H...
3) Create the java program
4) Compile and run the java program
In this video, what is the meaning of class, public, static, void, main, String[], System out println keywords
class keyword is used to declare a class in java.
public keyword is an access modifier which represents visibility. It means it is visible to all.
static is a keyword. If we declare any method as static, it is known as the static method. The core advantage of the static method is that there is no need to create an object to invoke the static method.
The main method is executed by the JVM, so it doesn't require to create an object to invoke the main method. So it saves memory.
void is the return type of the method. It means it doesn't return any value.
main represents the starting point of the program.
String args[] is used for command line argument.
System.out.println() is used to print statement. Here, System is a class, out is the object of PrintStream class, println() is the method of PrintStream class.
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