泛型类可以具有多个类型参数。以下示例将展示上述概念。
package com.learnfk; public class GenericsTester { public static void main(String[] args) { Box<Integer, String> box = new Box<Integer, String>(); box.add(Integer.valueOf(10),"Hello World"); System.out.printf("Integer Value :%d\n", box.getFirst()); System.out.printf("String Value :%s\n", box.getSecond()); Box<String, String> box1 = new Box<String, String>(); box1.add("Message","Hello World"); System.out.printf("String Value :%s\n", box1.getFirst()); System.out.printf("String Value :%s\n", box1.getSecond()); } } class Box<T, S> { private T t; private S s; public void add(T t, S s) { this.t = t; this.s = s; } public T getFirst() { return t; } public S getSecond() { return s; } }
这将产生以下输出。
链接:https://www.learnfk.comhttps://www.learnfk.com/java-generics/java-generics-multiple-type.html
来源:LearnFk无涯教程网
Integer Value :10 String Value :Hello World String Value :Message String Value :Hello World
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