class TestStuff
{
public int takeTwo(int x, int y)
{
//x = 0; y = 3;
int z = x > y ? x : y;
return z;
//System.out.println("Max is " + z);
}

public static void main(String[] args)
{

TestStuff t = new TestStuff();
System.out.println(t.takeTwo(12,3));

}
}

------解决方案--------------------
public int takeTwo(int x, int y)
{
//x = 0; y = 3;
int z = x > y ? x : y;
return z;
//System.out.println("Max is " + z);
}

System.out.println("Max is " + z); 这句话必须放到return前面去！！