Java Compile-Time Errors

javac: Command not found Installation problem or environment problem: The PATH is not set properly
WelcomeToJava.java:3 Method
printn(java.lang.String) not found in class
java.io.PrintStream.

    System.out.printn ("Welcome To Java !");
                     ^

The method println is misspelled.

Java Run-Time Errors

Can't find class Welcometojava The error is generated when typing

java Welcometojava

Generally this means that the class name was spelled differently from the source file name.
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