标题: String和StringBuffer效率的比较案例 [打印本页] 作者: 943480861 时间: 2016-4-26 21:11 标题: String和StringBuffer效率的比较案例 package PinJie;
import java.util.Date;
public class StringBuffer1 {
public static void main(String[] args) {
Long start=new Date().getTime();
//stringVersion();
stringBufferVersion();
Long end =new Date().getTime();
System.out.println("总时间为："+(end-start));
}
public static void stringBufferVersion(){
StringBuffer stringBuffer = new StringBuffer();
for (int i = 0; i < 100000; i++) {
stringBuffer.append("你啦啦啦");
}
System.out.println("StringBuffer拼接完成");
}
public static void stringVersion(){
String s="";
for (int i = 0; i < 100000; i++) {
s+="你啦啦啦";
}
System.out.println("String拼接完成");
}
}