中国开发网: 论坛: CNDEV-CS/WOW: 贴子 232204
nostalgic: 游戏
package insertSort;



//--------------------------------------------------------------
class ArrayIns
{
private long[] a; // ref to array a
private int nElems; // number of data items
//--------------------------------------------------------------
public ArrayIns(int max) // constructor
{
a = new long[max]; // create the array
nElems = 0; // no items yet
}
//--------------------------------------------------------------
public void insert(long value) // put element into array
{
a[nElems] = value; // insert it
nElems++; // increment size
}
//--------------------------------------------------------------
public void display() // displays array contents
{
for(int j=0; j<nElems; j++) // for each element,
System.out.print(a[j] + " "); // display it
System.out.println("");
System.out.println(nElems);
}
//--------------------------------------------------------------
public void insertionSort()
{
int in, out;

for(out=1; out<nElems; out++) // out is dividing line
{
long temp = a[out]; // remove marked item
in = out; // start shifts at out
while(in>0 && a[in-1] >= temp) // until one is smaller,
{
a[in] = a[in-1]; // shift item to right
--in; // go left one position
}
a[in] = temp; // insert marked item
} // end for
} // end insertionSort()
//--------------------------------------------------------------
} // end class ArrayIns
////////////////////////////////////////////////////////////////
public class InsertSortApp
{
public static void main(String[] args)
{
int maxSize = 100; // array size
ArrayIns arr; // reference to array
arr = new ArrayIns(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

arr.insertionSort(); // insertion-sort them

arr.display(); // display them again

} // end main()
} // end class InsertSortApp

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