1. To learn how to interpret simple Java programs
2. To learn the Java string methods
3. To understand data input using a Java Scanner
4. To practice Java data types and casting

//Interpreting Java
public class Interpret1 
{
    public static void main( String[ ] args )
    {

        // Variables
        int i = 15;
        int j = 6;
        double x = 7.0;
        double y = 4.0;

        // Expressions
        System.out.println("1) i / j = " + (i / j));
        System.out.println("2) i % j = " + (i % j));
        System.out.println("3) x / y = " + (x / y));
        System.out.println("4) i / y = " + (i / y)); 
        System.out.println("5) x - 6 * y = " + (x - 6 * y)); 
        System.out.println("6) (x - 6) * y = " + ((x - 6) * y)); 
        
        // Caution, this is a trick question!
        System.out.println("7) i + j = " + i + j); 
        
        // Letters
        char a, b, c;
        a = 'b';    
        System.out.println("8) " + a);
        b = 'c';
        System.out.println("9) " + b);
        c = (char) (b + 2);
        System.out.println("10) " + c);
    }
}

• Declare a new String variable and set it to your last name, followed by a comma and space, followed by your first name.
• The names should be capitalized and separated by a space.
• Call the following methods on the string, each in a separate print line:
  1. length() of the string
  2. indexOf() the comma character
  3. charAt() the first letter in the string
  4. charAt() the last letter in the string
  5. substring() containing the third up to (not including) the seventh characters
  6. toUpperCase() of the string
  7. toLowerCase() of the string

1. Use a Scanner object to read an integer int x;.
2. Use a Scanner object to read a floating-point value double d;.
3. Type cast x to a byte value and store the result in byte b;.
4. Type cast d to an int value and store the result in int y;.
5. Display x, b, d, and y, clearly labeled.
6. The floating-point value d should be formatted to two decimal places with a DecimalFormat object.