Hello world program in java | First java program | Compile and run
Simple java program step by step
It will print “Welcome to the world of java” in console.
Multi line comment /* comment */
Single line comment //
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public class WelcomeToTheWorldOfJava:
public: Access modifier
class: java keyword to declare a class
WelcomeToTheWorldOfJava: class name.
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Public static void main(String [ ] args)
Public is a access modifier
Static is a reserved keyword in the java which means method is accessible by class name. object is not required.
void means nothing would be returned from the method.
main is a method name that takes array of String as an argument.
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System.out.println(“ Welcome to the world of java. ”);
System is a class in the java.lang package.
out is a static member of the System class and is an instance of java.io.PrintStream
println is a method of java.io.PrintStream
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