Chapter 5.1
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The document discusses while and do-while loops in Java. The while loop evaluates a condition and executes the code block if it is true. It continues checking the condition and executing the block until false. The do-while loop executes the code block first and then evaluates the condition, repeating until false. Both loops are demonstrated with examples that output iterating numbers or running sums.
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While, for, and do-while loops in C allow code to be repeatedly executed. The while loop repeats as long as a condition is true. The do-while loop executes the code block first and then checks the condition, repeating if it's true. The for loop allows initialization of a counter variable, a condition to test on each iteration, and an increment statement. All three loops repeat zero or more times until their condition becomes false.
While , For , Do-While Loop
While, for, and do-while loops in C allow code to be repeatedly executed. The while loop repeats as long as a condition is true. The do-while loop executes the statement block first and then checks the condition, repeating until it is false. The for loop allows initialization of a counter variable, a condition to test on each iteration, and an increment expression to modify the counter between iterations. All three loops repeat zero or more times until their condition becomes false.
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Flow of control C ++ By TANUJ
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Chapter 5.1
- 1. IMPLEMENTING WHILE AND DO WHILE LOOP Chapter 5.1:
- 2. Repetition Statements Repetition statement (or loop) a block of code to be executed for a fixed number of times or until a certain condition is met. In JAVA, repetition can be done by using the following repetition statements: a) while b) do…while c) for
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- 5. Example 1 Output ? 1 2 3 4 int i=1; while (i<5){ System.out.print(i + “”); i++; }
- 6. Example 2 Output ? SUM : 1 SUM : 7 Good Bye int sum=0, number =1; while (number <= 10) { sum+=number; number = number + 5; System.out.println(“SUM :” + sum); } System.out.println(“Good Bye”);
- 7. The do…while statement It is similar to while loops except it first executes the statement(s) inside the loop, and then evaluates the expression/condition. If the expression is true, the statement(s) in the do loop is/are executed again. Syntax do statement(s); while (expression); It continues executing the statement until the expression/condition becomes false. Note that the statement within the do loop is always executed at least once.
- 9. Example 3 Output ? 0 1 2 3 int i=0; do{ System.out.print(i + “”); i++; }while(i<=3);
- 10. Example 4 Output ? SUM : 2 SUM : 9 int sum=0, number =2; do{ sum+=number; number = number + 5; System.out.println(“SUM :” + sum); } while (number <= 10);