Question

java中 怎么把字符串数组装换成字符串

Answer 1

/**
* Java中字符串和字符数组之间的相互转换
*
* */
public class StringAPIDemo01 {

public static void main(String[] args){

String str1 = "Hello Java";

char c[] = str1.toCharArray();//将一个字符串变为字符数组toCharArray();
for (int i = 0; i<c.length;i++){

System.out.print(c[i] + ",");
}
System.out.println("");

String str2 = new String(c);//将全部的字符数组变为String字符串

String str3 = new String(c,0,3);//将部分的字符数组变为String ，从下表为0开始到下表为3结束；

System.out.println(str2);//输出字符串
System.out.println(str3);
}