[NOTE: I indented the for loops for better reading.  DrJava
doesn't do it automatically in the Interactions pane]

> for (int i = 1; i <= 10; i++) {
    System.out.println("I will not throw the principal's toupee down the toilet.");
  }
I will not throw the principal's toupee down the toilet.
I will not throw the principal's toupee down the toilet.
I will not throw the principal's toupee down the toilet.
I will not throw the principal's toupee down the toilet.
I will not throw the principal's toupee down the toilet.
I will not throw the principal's toupee down the toilet.
I will not throw the principal's toupee down the toilet.
I will not throw the principal's toupee down the toilet.
I will not throw the principal's toupee down the toilet.
I will not throw the principal's toupee down the toilet.

> int j = 10;
> for (int i = 1; j <= 20; j++) {
    System.out.println("j = " + j);
  }
j = 10
j = 11
j = 12
j = 13
j = 14
j = 15
j = 16
j = 17
j = 18
j = 19
j = 20

> for (; j <= 30; j++) {
    System.out.println("j = " + j);
  }
j = 21
j = 22
j = 23
j = 24
j = 25
j = 26
j = 27
j = 28
j = 29
j = 30

> double k = 1.0;
> for (; k <= 10; k++) {
     System.out.println("k = " + k);
  }
k = 1.0
k = 2.0
k = 3.0
k = 4.0
k = 5.0
k = 6.0
k = 7.0
k = 8.0
k = 9.0
k = 10.0

> for (int i = 1; i <= 5; i++) {
    System.out.print(i * 3 + " ");
  }
3 6 9 12 15 > 
[NOTE: The reason the '>' appears at the end of the last
for loop is because there is no println to create a new
line at the end, thus the prompt (i.e., '>') appears
right after the output]

> for (int i = 1; i <= 5; i++) {
    System.out.println(i * 3 + 1 + " ");
  }
4 
7 
10 
13 
16 

> for (int i = 1; i <= 50; i += 2) {
    System.out.println(i);
  }
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49

> for (int m = 1; m <= 5; m++) {
    for (int n = 1; n <= 10; n++) {
      System.out.print((m*n) + " ");
    }
    System.out.println();
  }
1 2 3 4 5 6 7 8 9 10 
2 4 6 8 10 12 14 16 18 20 
3 6 9 12 15 18 21 24 27 30 
4 8 12 16 20 24 28 32 36 40 
5 10 15 20 25 30 35 40 45 50 

> for (int m = 1; m <= 5; m++) {
    for (int n = 1; n <= 10; n++) {
      System.out.print((m) + " ");
    }
    System.out.println();
  }
1 1 1 1 1 1 1 1 1 1 
2 2 2 2 2 2 2 2 2 2 
3 3 3 3 3 3 3 3 3 3 
4 4 4 4 4 4 4 4 4 4 
5 5 5 5 5 5 5 5 5 5 

> for (int line = 1; line <= 5; line++) {
    for (int q = 1; q <= (-1 * line + 5); q++) {
        System.out.print(".");
    }
    System.out.println(line);
  }
....1
...2
..3
.4
5

> for (int line = 1; line <= 5; line++) {
    for (int q = 1; q <= (-1 * line + 5); q++) {
      System.out.print(".");
    }
    System.out.print(line);
    for (int q = 1; q <= (line - 1); q++) {
      System.out.print(".");
    }
    System.out.println();
  }
....1
...2.
..3..
.4...
5....