Question

java程序报错，求修改。 StackOfIntegers stack=new StackOfIntegers();和 this(DEFAULT_CAPACITY);报错

public class A02 {

public static void main(String[] args) {
StackOfIntegers stack=new StackOfIntegers();
for(int i=0;i<10;i++)
stack.push(i);
while (!stack.empty())
System.out.print(stack.pop()+" ");
// TODO Auto-generated method stub

}
class StackOfIntegers{
private int[] elements;
private int size;
public static final int DEFAULT_CAPACITY=16;

public StackOfIntegers() {
this(DEFAULT_CAPACITY);
}
public void stackOfIntegers(int capacity){
elements=new int[capacity];
}

public void push(int value)
{
if(size>=elements.length)
{
int[] temp=new int[elements.length*2];
System.arraycopy(elements,0,temp,0,elements.length);
elements=temp;
}
elements[size++]=value;
}

public int pop(){
return elements[--size];
}

public int peek(){
return elements[size-1];
}

public boolean empty(){
return size==0;
}

public int getSize(){
return size;
}
}
}

Answer 1

1.
public StackOfIntegers() {
this(DEFAULT_CAPACITY);
}
public void stackOfIntegers(int capacity){ //这个写错了，去掉void,stack首字母大写，不然不是
//constructor
elements=new int[capacity];
}

2.
StackOfIntegers这个类放到主类外面