第1个回答 2010-10-31
试试下面程序中的三种方法看看:
public class Allstring {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
String[] str = new String[3];
str[0] = "first";
str[1] = "second";
str[2] = "third";
String allStr1 = new String();
String allStr2 = new String();
allStr1 = str[0].concat(str[1]).concat(str[2]);
allStr2 = str[0] + str[1] + str[2];
StringBuffer sb = new StringBuffer();
String allStr3 = sb.append(str[0]).append(str[1]).append(str[2]).toString();
System.out.println(allStr1);
System.out.println(allStr2);
System.out.println(allStr3);
}
}