public static void main(String[] args) {
String[] strings = {"string1", "string2", "string3", "string4", "string5"};
StringBuilder sb = new StringBuilder();
for (String str : strings) {
if (sb.length() > 0) {
sb.append(",");
}
sb.append(str);
}
System.out.println(" print sb: " + sb);
}
輸出結(jié)果：
print sb: string1,string2,string3,string4,string5
