Java泛型绑定类型擦除 Java 绑定类型擦除 Java 无界类型擦除 Java泛型绑定类型擦除 package com.codingdict; public class GenericsTester { public static void main(String[] args) { Box integerBox = new Box(); Box doubleBox = new Box(); integerBox.add(new Integer(10)); doubleBox.add(new Double(10.0)); System.out.printf("Integer Value :%d\n", integerBox.get()); System.out.printf("Double Value :%s\n", doubleBox.get()); } } class Box { private Number t; public void add(Number t) { this.t = t; } public Number get() { return t; } } Java 绑定类型擦除 Java 无界类型擦除