Java How To Program (Early Objects)
Java How To Program (Early Objects)
10th Edition
ISBN: 9780133807943
Author: Deitel, Paul
Publisher: Pearson Education
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Chapter 5, Problem 1.1SRE

Fill in the blanks in each of the following statements:

Typically,    statements are used for counter-controlled

iteration and    statements for sentinel-controlled iteration.

Expert Solution & Answer
Check Mark
Program Description Answer

The “for loop” statements are used for counter-controlled iteration and “while loop” statements used for sentinel-controlled iteration.

Explanation of Solution

“for” loop:

  • The for loop gets starts with the keyword “for”. It contains three control structures and these control structures are separated using (;) semicolon. They are:
    • “Initial-action”, used to initialize the control variable.
    • “Loop-continuation-condition”, it determines whether the loop gets repeated.
    • “Action-after-each-iteration”, used to update the control variable for next iteration.
    • So, the “for” loop always used for counter-controlled iteration.

A for loop is used to execute a block of statements repeatedly until the condition is true. The syntax of for loop:

for(i=initial_value;i<end_value;i++)

{

  Loop statements;

}

  • Here, the variable “i” is referred as control variable, it controls how many times that the loop gets executed.

“while” loop:

The “while” loop first checks its expression and then the statements inside the loop are executed. It is also called as pretest loops.

  • These loops do not have to be terminated with a semicolon.
  • With the false expressions, the loops can be terminated.
  • So, the “while” loop always used for sentinel-controlled iteration.

Syntax:

The syntax for the while loop is as follows:

//while loop statement

while (condition)

{

    //statement

}

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Chapter 5 Solutions

Java How To Program (Early Objects)

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