public class f {
public static void main(String [] args){
String oldstr="I am a programmer";
int a=oldstr.length();
String[] str = oldstr.split(" ");
int b=str.length;
String finalstr="";
for(int i=3;i>-1;i--)
{
finalstr=finalstr+str[i]+" ";
}
System.out.println(finalstr);
System.out.println(a);
System.out.println(b);
}
}
一个将字符串反转的源码
public class g {
public static void main(String args[]){
// char s[]={'a','b','c'};
String a[]=new String[4];
for(int i=a.length-1;i>-1;i--){
System.out.println(a[i]);
}
}
}