Concatenate, sort and swap array in Java
- by sblck
I am trying to concatenate two arrays into new array, sort in order, and swap two values of index.
I'm kind of new to java and only use C before so having a hard time handling an Object.
In main method it declares two object arrays
IntVector vector = new IntVector(3); and IntVector vector2 = new IntVector(3);
I can only do this if the types are int[], but I want to use as an object
How should I code the concat, sort, and swap method?
public class IntVector {
private int[] items_;
private int itemCount_;
private IntVector(int[] data, int n) {
items_ = data.clone();
itemCount_ = n;
}
public IntVector(int itemSize)
{
itemCount_ =0;
if(itemSize<1) itemSize =10;
items_ = new int[itemSize];
}
public void push(int value)
{
if(itemCount_ + 1 >= items_.length)
overflow();
items_[itemCount_++] = value;
}
public void log()
{
for (int i=0 ; i<itemCount_; ++i)
{
System.out.print(items_[i]);
if(i<itemCount_ -1)
System.out.println();
}
}
public void overflow()
{
int[] newItems = new int[items_.length * 2];
for(int i=0 ; i<itemCount_; ++i)
{
newItems[i] = items_[i];
}
items_=newItems;
}
public int getValue(int index)
{
if(index < 0 || index >= itemCount_)
{
System.out.println("[error][IntVector][setValue] Incorrect index=" + index);
return 0;
}
return items_[index];
}
public void setValue(int index, int value)
{
if(index < 0 || index >= itemCount_)
{
System.out.println("[error][IntVector][setValue] Incorrect index=" + index);
return ;
}
items_[index] = value;
}
public IntVector clone()
{
return new IntVector(items_, itemCount_);
}
public IntVector concat()
{
return null;
}
public IntVector sort()
{
return null;
}
public IntVector swap()
{
return null;
}
public static void main(String[] args)
{
IntVector vector = new IntVector(3);
IntVector vector2 = new IntVector(3);
vector.push(8);
vector.push(200);
vector.push(3);
vector.push(41);
IntVector cloneVector = vector.clone();
vector2.push(110);
vector2.push(12);
vector2.push(7);
vector2.push(141);
vector2.push(-32);
IntVector concatResult = vector.concat(vector2);
IntVector sortResult = concatResult.sort();
IntVector swapResult = sortResult.clone();
//swapResult.swap(1,5);
System.out.print("vector : "); vector.log();
System.out.print("\n\ncloneVector : "); cloneVector.log();
System.out.print("\n\nvector2 : "); vector2.log();
System.out.print("\n\nconcatvector : "); concatResult.log();
System.out.print("vector : "); vector.log();
System.out.print("vector : "); vector.log();
}
}
