1. ./Conversion.java
2. ./EscapeCharacters.java
3. ./Float.java
4. ./Hello.java
5. ./WinPercentage.java

/**
 * This class converts from inches to centimeters.
 *
 * @author Sara Sprenkle
 *
 */
public class Conversion {  
    
    /**
     * Called when user runs 
     *  java Conversion
     */
    public static void main(String[] args) {
        int numInches = 1;
        double cm_per_inch = 2.540;
        double numCM = numInches*cm_per_inch;
        
        // Need to put + in between string literals and variables.
        // Need to put explicit spaces into string literals.
        // Note that Java will automatically convert the ints and doubles
        // to Strings when you concatenate a String with them.
        System.out.println("There are " + numCM + " cm in " + numInches + " inches.");       
        
    }
}

/**
 * This class demonstrates using some escape characters
 *
 * @author Sara Sprenkle
 */
public class EscapeCharacters {  
  
   /**
    * Called when user runs 
    *  java EscapeCharacters
    */
   public static void main(String[] args) { 
       System.out.println("To print a \\, you must use \"\\\\\".");
       System.out.println("\tTab before\tand in the middle.");
       System.out.println("\nExtra blank line.");
   }
}

/**
 * This class demonstrates how to specify floats vs doubles in Java.
 *
 * But, it's easier to just use doubles.
 *
 * @author Sara Sprenkle
 */
public class Float { 
  
   /**
    * Called when user runs 
    *  java Float
    */
   public static void main(String[] args) {
       float f = 3.14;
       // double f = 3.14; // <-- use this solution
       System.out.println(f);
   }
}

/**
 * Demonstrates new feature _previewed_ in Java 21.
 * Previewed features may not be permanent.
 * 
 * Compile and run using 
 *      javac --source 21 --enable-preview Hello.java
 *      java --source 21 --enable-preview Hello.java
 *
 *
 * @author Sara Sprenkle
 */
public class Hello {

    void main() {
        System.out.println("Hello!");
    }
    
}

/**
 * Demonstrates casting a variable to a certain type
 * and automatically changing a double to a String in a print statement.
 *
 * @author Sara Sprenkle
 */
public class WinPercentage {

    public static void main(String[] args) {
        int wins = 95;
        int losses = 56;
        int numGames = wins + losses;

        /* try removing the (double) below to see what happens. */
        double winPct =(double) wins/numGames;

        System.out.println("Your win percentage is " + winPct);
        System.out.println("Nice job!");
        System.out.println("woo hoo!");
    }
    
}