[JAVA] help

ListArrayMain.java

-

public class ListArrayMain {

public static void main (String[] args) {

ListArray L1 = new ListArray(); // constructs the list L1

L1.InsertBegin(2);

L1.InsertBegin(3);

L1.InsertBegin(7);

L1.InsertBegin(15);

L1.InsertBegin(5);

L1.InsertEnd(666);

L1.InsertAfter(1000,7);

// Now, let's print out the array to verify the insertions worked.

System.out.println("The items in the list are:");

for (int i = 0; i

System.out.println(L1.a[i]);

}

System.out.println("The last cell number is: " + L1.lastCell);

}// end main

}

-

ListArray.java

public class ListArray {

//data fields

int a[]; // holds the lists elements

int lastCell; //index of the last item in the list (array);

//cannot be greater than what the constructor allows

// Constructor

public ListArray() {

a = new int[10]; // sets up array of 10 cells, numbered 0 to 9,

//to hold the elements

lastCell = -1; // indicates an empty list

}

// Methods:

public boolean IsFull() {

if(lastCell==9) {

return true;

} else {

return false;

}

}

public boolean IsEmpty() {

/*if(lastCell==-1) {

return true;

} else {

return false;

}*/

return (lastCell==-1);

}

public void InsertBegin(int item) {

if (IsFull() == false) {

for (int i=lastCell;i>=0;i--) {

a[i+1] = a[i];

}

a[0]=item;

lastCell++;

} else {

System.out.println("list is full");

}

}

public void InsertEnd(int item) {

if (IsFull() == false) {

a[lastCell+1] = item;

lastCell++;

}

}

public void InsertAfter(int item, int datum) {

// insert an item after a specifed datum

int locationOfDatum = Find(datum);

// move list items to the right

for (int i=lastCell;i>=locationOfDatum+1;i--) {

a[i+1]=a[i];

}

a[locationOfDatum+1]=item;

lastCell++;

}

public int Find(int item) {

for (int i=0; i

if (a[i]==item) {

return i;

}

};

return -1;

}

}//end class

-

My question:

-

My question:

-

1. Do the following two tasks. Submit the code in ListArrayMain.java that does the following: . In ListArrayMain, construct an array and create the array which is the reversal of the given array and print it out. In ListArrayMain, construct two arrays of the same size and produce an array that "interlaces" them, and prints out the interlaced array. Example if array a consists of data 2, 5, 3, 6 and array b consists of 12,7, 4, 2, then the interlaced array should be 2, 12, 5, 7, 3, 4, 6, 2