学JAVA的新新手 昨天做了个题 替换字符串的 但 运行起来却看不到输出 帮忙看看 谢谢~~
public class Asd{
public Asd(){}
public String repast(String Sou,String oldString,String newString ){
StringBuffer bf = new StringBuffer();int Slen = Sou.length();
int Olen= oldString.length();
int s=0;
int pos;
while((s=Sou.indexOf(oldString))>=0){
bf.append(Sou.substring(0,s)).append(newString);
pos= s+Olen;
if (pos < Slen) {
bf.append(Sou.substring(pos));
}
}
return bf.toString(); }
public static void main(String args[]){
String s="SOURCE";
String oldString="RC";
String newString="QW";
String i;
Asd a= new Asd();
i= a.repast(s,oldString,newString);
System.out.println(""+i);}
}
public class Asd{
public Asd(){}
public String repast(String Sou,String oldString,String newString ){
StringBuffer bf = new StringBuffer();int Slen = Sou.length();
int Olen= oldString.length();
int s=0;
int pos;
while((s=Sou.indexOf(oldString))>=0){
bf.append(Sou.substring(0,s)).append(newString);
pos= s+Olen;
if (pos < Slen) {
bf.append(Sou.substring(pos));
}
}
return bf.toString(); }
public static void main(String args[]){
String s="SOURCE";
String oldString="RC";
String newString="QW";
String i;
Asd a= new Asd();
i= a.repast(s,oldString,newString);
System.out.println(""+i);}
}
public Asd(){}
public String repast(String Sou,String oldString,String newString ){
StringBuffer bf = new StringBuffer();int Slen = Sou.length();
int Olen= oldString.length();
int s=0;
int pos;
while((s=Sou.indexOf(oldString))>=0){
bf.append(Sou.substring(0,s)).append(newString);
pos= s+Olen;
if (pos < Slen) {
bf.append(Sou.substring(pos));
}
Sou = Sou.substring(pos);//少了这句,你的while循环一直成立,因为你的Sou一直没变
}
return bf.toString(); }
public static void main(String args[]){
String s="SOURCE";
String oldString="RC";
String newString="QW";
String i;
Asd a= new Asd();
i= a.repast(s,oldString,newString);
System.out.println(""+i);}
}