以下程序的输出结果为______。
public class Tom
private float weight;
private static String name;
public void setWeight(float weight)
this.weight = weight;

private void out______
System.out.println(name + "体重：" + weight + "斤");

public static void main(String[] args)
Tom.name = "汤姆猫";
Tom cat = new Tom______;
cat.setWeight(20);
cat.out______;