方法一:
public class Demo7 {
public static void main(String[] args) {
StringBuffer str = new StringBuffer();
str.append("We are family");
System.out.println(replaceSpace(str));
}
public static String replaceSpace(StringBuffer str) {
String str1=str.toString();
String str2 = str1.replace(" ", "%20");
return str2;
}
}
方法二:
public class Demo8 {
public static void main(String[] args) {
System.out.println(replaceSpace(new StringBuffer("We are family")));
}
public static String replaceSpace(StringBuffer str) {
String str1=str.toString();
char[] ch = str1.toCharArray();
StringBuilder sBuilder = new StringBuilder();
for (char c : ch) {
if (c==' ') {
sBuilder.append("%20");
}else {
sBuilder.append(c);
}
}
String str2 = sBuilder.toString();
return str2;
}
}