Question
Hello I am taking a Data Structures & Algorithms class in Java this semester and we just got introduced to Arrays and manipulating them. I
Hello I am taking a Data Structures & Algorithms class in Java this semester and we just got introduced to Arrays and manipulating them. I am confused with the assignment so some help would be well appreciated! Also, each problem should be its own package.
Thanks!
The Assignment:
Unordered Array Sample Code:
package unorderedArray;
class UnorderedArray { private long[] a; // ref to array a private int nElems; // number of data items //----------------------------------------------------------- public UnorderedArray(int max) // constructor { a = new long[max]; // create the array nElems = 0; // no items yet } //----------------------------------------------------------- public boolean find(long searchKey) { // find specified value int j; for(j=0; j Unordered Array App Sample Code package unorderedArray; class UnorderedArrayApp { public static void main(String[] args) { int maxSize = 100; // array size UnorderedArray arr; // reference to array arr = new UnorderedArray(maxSize); // create the array arr.insert(77); // insert 10 items arr.insert(99); arr.insert(44); arr.insert(55); arr.insert(22); arr.insert(88); arr.insert(11); arr.insert(00); arr.insert(66); arr.insert(33); arr.display(); // display items int searchKey = 35; // search for item if( arr.find(searchKey) ) System.out.println("Found " + searchKey); else System.out.println("Can't find " + searchKey); arr.delete(00); // delete 3 items arr.delete(55); arr.delete(99); arr.display(); // display items again } // end main() } // end class UnorderedArrayApp Ordered Array Sample Code: package orderedArray; class OrderedArray { private long[] a; // ref to array a private int nElems; // number of data items //----------------------------------------------------------- public OrderedArray(int max) // constructor { a = new long[max]; // create array nElems = 0; } //----------------------------------------------------------- public int size() { return nElems; } //----------------------------------------------------------- public int find(long searchKey) { int lowerBound = 0; int upperBound = nElems-1; int curIn; while(true) { curIn = (lowerBound + upperBound ) / 2; if(a[curIn]==searchKey) return curIn; // found it else if(lowerBound > upperBound) return nElems; // can't find it else // divide range { if(a[curIn] value) // (linear search) break; for(int k=nElems; k>j; k--) // move bigger ones up a[k] = a[k-1]; a[j] = value; // insert it nElems++; // increment size } // end insert() //----------------------------------------------------------- public boolean delete(long value) { int j = find(value); if(j==nElems) // can't find it return false; else // found it { for(int k=j; k Orderedarray App Code package orderedArray; public class OrderedArrayApp { public static void main(String[] args) { int maxSize = 100; // array size OrderedArray arr; // reference to array arr = new OrderedArray(maxSize); // create the array arr.insert(77); // insert 10 items arr.insert(99); arr.insert(44); arr.insert(55); arr.insert(22); arr.insert(88); arr.insert(11); arr.insert(00); arr.insert(66); arr.insert(33); int searchKey = 55; // search for item if( arr.find(searchKey) != arr.size() ) System.out.println("Found " + searchKey); else System.out.println("Can't find " + searchKey); arr.display(); // display items arr.delete(00); // delete 3 items arr.delete(55); arr.delete(99); arr.display(); // display items again } // end main() }
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