Java入门:String和StringBuffer之概览

public class StringTest1 {
public static void main(String[] args){
    // create String literals
    long startTime = System.currentTimeMillis();
    for(int i=0;i<50000;i++){
    String s1 = "hello";
    String s2 = "hello";
    }
    long endTime = System.currentTimeMillis();
    System.out.println("Time taken for creation of String literals : "
                  + (endTime - startTime) + " milli seconds" );
    // create String objects using 'new' keyword      
    long startTime1 = System.currentTimeMillis();
    for(int i=0;i<50000;i++){
    String s3 = new String("hello");
    String s4 = new String("hello");
    }
    long endTime1 = System.currentTimeMillis();
    System.out.println("Time taken for creation of String objects : "
                  + (endTime1 - startTime1)+" milli seconds");
    }
}

文章来源于领测软件测试网 https://www.ltesting.net/