本文详细介绍了如何使用Java编写一个生成随机字符串的算法。通过引入`Random`类和`StringBuffer`，作者实现了从字母和数字中随机选择字符来构建长度为32的字符串。该过程展示了基本的字符串操作和随机数生成的应用。
public String make()
{
// author : herrapfel
String radStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
StringBuffer generateRandStr = new StringBuffer();
Random rand = new Random();
int length = 32;
for(int i=0;i<length;i++)
{
int randNum = rand.nextInt(36);
generateRandStr.append(radStr.substring(randNum,randNum+1));
}
return generateRandStr+"";
}
{
// author : herrapfel
String radStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
StringBuffer generateRandStr = new StringBuffer();
Random rand = new Random();
int length = 32;
for(int i=0;i<length;i++)
{
int randNum = rand.nextInt(36);
generateRandStr.append(radStr.substring(randNum,randNum+1));
}
return generateRandStr+"";
}
扫一扫
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
