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1 package package123 public class Trace3 f4epublic staticc void main(String[] args)int list[](2, 3, 4, 5, 6};6for (int ilist[i]1; i < list.length; i++)list[i]/2i;7list[3]}list[0] 1;101112 Provide each step of execution in the form:listii < list.length

Question

Trace and document every step of execution of the following program.

Verify the answer programmatically (add a printing method into the program).

 

1 package package1
2
3 public class Trace3 f
4e
public staticc void main(String[] args)
int list[]
(2, 3, 4, 5, 6};
6
for (int i
list[i]
1; i < list.length; i++)
list[i]/2i;
7
list[3]
}
list[0] 1;
10
11
12
help_outline

Image Transcriptionclose

1 package package1 2 3 public class Trace3 f 4e public staticc void main(String[] args) int list[] (2, 3, 4, 5, 6}; 6 for (int i list[i] 1; i < list.length; i++) list[i]/2i; 7 list[3] } list[0] 1; 10 11 12

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Provide each step of execution in the form:
list
i
i < list.length
help_outline

Image Transcriptionclose

Provide each step of execution in the form: list i i < list.length

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check_circleAnswer
Step 1

Given program after adding printing method is,

//Package

package package1;

//Create a class

public class Trace3

{

     //Define the main() function

     public static void main(String[] args)

     {

          //Initialize an array

          int list[]= {2,3,4,5,6};

          //Print the length of an array

          System.out.println(list.length);

          //Create "for" loop to iterate over array elements

          for(int i=0;i<list.length;i++)

          {

/*Fill the array with the value calculated from the formula*/

              list[i]=list[i]/2+i;

             

              //Print new array element

              System.out.println("List["+i+"]="+list[i]);

             

              //Set the 4th array element "list[3] as "0"

              list[3]=list[0]-1;

          }

     }

}

Screenshot of program:

//Package
package package1;
//Create
a class
public class Trace3
//Define the main() function
public static void main (String [] args)
//Initialize an array
int list[ 2,3,4,5,6};
//Print the length of an array
System.out.println("The length of array is: "+list.length);
//Create "for" loop to iterate over array elements
for (int i-0;i<list.length;it+
//Fill the array with the value calculated from the formula
list[i] list[i]/2+i;
1/Print new array element
System.out.println("List["+i+"]="+list[i]);
1/Set the 4th array element "list[3]
list[3]-list[0]-1;
as "e"
help_outline

Image Transcriptionclose

//Package package package1; //Create a class public class Trace3 //Define the main() function public static void main (String [] args) //Initialize an array int list[ 2,3,4,5,6}; //Print the length of an array System.out.println("The length of array is: "+list.length); //Create "for" loop to iterate over array elements for (int i-0;i<list.length;it+ //Fill the array with the value calculated from the formula list[i] list[i]/2+i; 1/Print new array element System.out.println("List["+i+"]="+list[i]); 1/Set the 4th array element "list[3] list[3]-list[0]-1; as "e"

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Step 2

Screenshot of output:

The length of array is: 5
List[0]-1
List[1]-2
List[2] 4
List[3]=3
List[4]-7
help_outline

Image Transcriptionclose

The length of array is: 5 List[0]-1 List[1]-2 List[2] 4 List[3]=3 List[4]-7

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Step 3

Program tracing steps:

  • The statement “list.length” is used to return the number of elements in an array “list”. Here the length of the array “list” is “5”.
  • ...
Array position
List[0]
List 1]
List[2]
List[3]
List[4]
Array element
2
3
4
5
6
help_outline

Image Transcriptionclose

Array position List[0] List 1] List[2] List[3] List[4] Array element 2 3 4 5 6

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Tagged in

Engineering

Computer Science

Java

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