Help with stack

[boots9491]

public class Coordinate{
	
	private Integer row;
	private Integer column;
	
	public Coordinate(Integer row, Integer column){
		this.row = row;
		this.column = column;
	}
	
	public void setRow(Integer row){
		this.row = row;
	}
	
	public void setColumn(Integer column){
		this.column = column;
	}
	
	public Integer getRow(){
		return row;
	}
	
	public Integer getColumn(){
		return column;
	}
	
	public String toString(){
		return "<" + row.toString() + "," + column.toString() + ">";
	}
}

ok so i have this coordinate class and i have some of them pushed onto a stack. now what i want to do is peek() at one of them and be able to use the getRow and getColumn method at the one i peek at. How do i do this? The problem i am having is i am creating a new instance of Coordinate and then assigning stack.peek() to it and then using the methods on it but that not working. Confused

[Norm]

that not working.

Please explain what is not working.
I don't see where you are calling the peek() method.

[boots9491]

Coordinate coordinate = stack.peek();

it gives me this; incompatible types
Coordinate coordinate = mazeStack.peek();
^
required: Coordinate
found: Object
1 error

[Norm]

Did you define your stack to contain Coordinate objects? If not, you will have to cast what is returned by peek() to be a Coordinate.