Java How To Program, Late Objects, 11th Edition

2.2 Your First Program in Java: Printing a Line of Text

A Java application is a computer program that executes when you use the java command to launch the Java Virtual Machine (JVM). Sections 2.2.1–2.2.2 discuss how to compile and run a Java application. First we consider a simple application that displays a line of text. Figure 2.1 shows the program followed by a box that displays its output.

Fig. 2.1 Text-printing program

 1   // Fig. 2.1: Welcome1.java
 2   // Text-printing program.
 3
 4   public class Welcome1 {
 5      // main method begins execution of Java application
 6      public static void main(String[] args) {
 7         System.out.println("Welcome to Java Programming!");
 8      } // end method main
 9   } // end class Welcome1

Welcome to Java Programming!

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