方法重载(over load):方法名相同,参数列表不同,返回类型无关

package com.tanlei.newer;public class OverLoadDemo {  public static void main(String[] args) {	  Printer printer=new Printer(1000);	  printer.print("hello");	  printer.print(12);	  printer.print("hello", 12);}}class Printer{	private String bread="tanlei";	private double  price;		public Printer(double price) {		this.price = price;	}		public Printer(String bread, double price) {		this.bread = bread;		this.price = price;	}	public  void print(String content) {		System.out.println("字符串"+content);	}		public  void print(int content) {		System.out.println("整型"+content);	}		public  void print(String str,int content) {		System.out.println(str+"--"+content);	}}