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Section 7.14 Assessment: Nested Loops

Subgoals for Evaluating a Loop.

  1. Identify loop parts
    1. Determine start condition
    2. Determine update condition
    3. Determine termination condition
    4. Determine body that is repeated
  2. Trace the loop
    1. For every iteration of loop, write down values

Exercises Exercises

    2.

    Q2: What is the minimum number of times β€œHello” 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();
    }
    
    Figure 7.14.1.

    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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