1.
- 4
- 8
- 10
- 16
- 20
Q1: What is printed as a result of executing the following code segment?
int count = 0;
for (int x = 0; x < 4; x++) {
for (int y = x; y < 4; y++)
count++;
}
System.out.println(count);
Section 7.14 Assessment: Nested Loops
Subgoals for Evaluating a Loop.
-
Identify loop parts
- Determine start condition
- Determine update condition
- Determine termination condition
- Determine body that is repeated
-
Trace the loop
- For every iteration of loop, write down values
Exercises Exercises
- 0
- 1
- 2
- n - 1
- n - 2
- See diagram for answer A
- See diagram for answer B
- See diagram for answer C
- See diagram for answer D
- See diagram for answer E
- 0 1 2 3
- 0 0 1 0 1 2
- 0 1 2 2 3 3 3
- 0 1 1 2 2 2 3 3 3 3
- 0 0 1 0 1 2 0 1 2 3
- 20
- 45
- 55
- 100
- 385
2.
Q2: What is the minimum number of times “Hello” can be printed?
int k = // a random number such that 1 <= k <= n ;
for (int p = 2; p <= k; p++) {
for (int r = 1; r < k; r++)
System.out.println("Hello");
}
3.
Q3: What is printed as a result of executing the following code segment?
for (int r = 3; r > 0; r--) {
int c;
for (c = 1; c < r; c++)
System.out.print("-");
for (c = r; c <= 3; c++)
System.out.print("*");
System.out.println();
}
4.
Q4: What is printed as a result of executing the following code segment?
for (int outer = 0; outer < 4; outer++) {
for (int inner = 0; inner <= outer; inner++)
System.out.print(outer + " ");
}
5.
Q5: What is printed as a result of executing the following code segment?
int s = 0;
for (int outer = 1; outer <= 10; outer++) {
for (int inner = outer; inner <= 10; inner++)
s++;
}
System.out.println(s);
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