ch2 -...

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Unformatted text preview: //******************************************************************** // Countdown.java Author: Lewis/Loftus // // Demonstrates the difference between print and println. //******************************************************************** public class Countdown { //----------------------------------------------------------------- // Prints two lines of output representing a rocket countdown. //----------------------------------------------------------------- public static void main (String args) { System.out.print ("Three... "); System.out.print ("Two... "); System.out.print ("One... "); System.out.print ("Zero... "); System.out.println ("Liftoff!"); // appears on first output line System.out.println ("Houston, we have a problem."); } } //******************************************************************** // Facts.java Author: Lewis/Loftus // // Demonstrates the use of the string concatenation operator and the // automatic conversion of an integer to a string. //******************************************************************** public class Facts { //----------------------------------------------------------------- // Prints various facts. //----------------------------------------------------------------- public static void main (String args) { // Strings can be concatenated into one long string System.out.println ("We present the following facts for your " + "extracurricular edification:"); System.out.println (); // A string can contain numeric digits System.out.println ("Letters in the Hawaiian alphabet: 12"); // A numeric value can be concatenated to a string System.out.println ("Dialing code for Antarctica: " + 672); System.out.println ("Year in which Leonardo da Vinci invented " + "the parachute: " + 1515); System.out.println ("Speed of ketchup: " + 40 + " km per year"); } } //******************************************************************** // Addition.java Author: Lewis/Loftus // // Demonstrates the difference between the addition and string // concatenation operators. //******************************************************************** public class Addition { //----------------------------------------------------------------- // Concatenates and adds two numbers and prints the results. //----------------------------------------------------------------- public static void main (String args) { System.out.println ("24 and 45 concatenated: " + 24 + 45); System.out.println ("24 and 45 added: " + (24 + 45)); } } //******************************************************************** // Roses.java Author: Lewis/Loftus // // Demonstrates the use of escape sequences. //******************************************************************** public class Roses { //----------------------------------------------------------------- // Prints a poem (of sorts) on multiple lines....
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ch2 -...

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