Java软贱攻城狮

class Point<T> { private T x; private T y; public T getX() { return x; } public void setX(T x) { this.x = x; } public T getY() { return y; } public void setY(T y) { this.y =...

范例1：class Message<T> { private T t; public void set(T t) { this.t = t; } public T get() { return this.t; }}public class Demo { public static void main(String[] args) { Message&l...

范例1：接口设置泛型，子类也设置泛型interface MyMessage<T> { public void print(T t);}class Message<T> implements MyMessage<T> { @Override public void print(T t) { System.out.println(t); }}...

范例：public class Demo { public static void main(String[] args) { String str = fun("Hello"); System.out.println(str.substring(0, 4)); } public static <T> T fun(T t) { return t; }}...