public class Variables
1: /**
2: * Create and manipulate some variables.
3: *
4: * @author Mark Young (A00000000)
5: */
6: public class Variables {
8: /**
9: * Run this program.
10: *
11: * @param args command lines arguments (ignored)
12: */
13: public static void main(String[] args) {
14: // create variables with values
15: int n = 10;
16: double x = 4.50833;
17: String s = "Hello";
18: char capitalA = 'A';
19: boolean isSo = true;
21: // report some values
22: System.out.println("\n\tint n = 10;\n"
23: + "\tdouble x = 4.50833;\n"
24: + "\tString s = \"Hello\";");
25: System.out.println("n is " + n + ", x is " + x + ", and s is " + s);
27: // change some values
28: n = 20;
29: x = 34.001;
30: s = "Bye!";
32: // report some values
33: System.out.println("\n\tn = 20;\n"
34: + "\tx = 34.001;\n"
35: + "\ts = \"Bye!\";");
36: System.out.println("n is " + n + ", x is " + x + ", and s is " + s);
38: // modify some values
39: n += 5;
40: x -= 0.001;
41: s += " Bye!";
43: // report some values
44: System.out.println("\n\tn += 5;\n"
45: + "\tx -= 0.001;\n"
46: + "\ts += \" Bye!\";");
47: System.out.println("n is " + n + ", x is " + x + ", and s is " + s);
48: }
50: }