public static String change(String s){ String res =""; for(int i=s.length()-1;i>-1;i--){ Char c = s.charAt(i); if(c>='a'&&a<='z')c = (char)(c-'a'+'A'); if(c>='A'&&a<='Z')c = (char)(c-'A'+'a'); res+=""+c; } return res; }
String s = "AbcDE"; StringBuffer sb = new StringBuffer(); String result = null; for (int i = 0; i < s.length(); i++) { if (Character.isUpperCase(s.charAt(i))) { sb.append(Character.toLowerCase(s.charAt(i))); } else { sb.append(Character.toUpperCase(s.charAt(i))); } } result = sb.reverse().toString(); System.out.println(result);
public void fun05(){ String letter = "AbcDE"; StringBuffer sb = new StringBuffer(); for(int i=letter.length()-1; i>=0; i--){ char c =letter.charAt(i); String cs = String.valueOf(c); if(c<='z' && c>='a'){ sb.append(cs.toUpperCase()); }else if(c<='Z' && c>='A'){ sb.append(cs.toLowerCase()); } } System.out.println(sb); }
public staric void main(String as[]) { fun05();//调用楼上方法 }
String res ="";
for(int i=s.length()-1;i>-1;i--){
Char c = s.charAt(i);
if(c>='a'&&a<='z')c = (char)(c-'a'+'A');
if(c>='A'&&a<='Z')c = (char)(c-'A'+'a');
res+=""+c;
}
return res;
}
StringBuffer sb = new StringBuffer();
String result = null;
for (int i = 0; i < s.length(); i++) {
if (Character.isUpperCase(s.charAt(i))) {
sb.append(Character.toLowerCase(s.charAt(i)));
} else {
sb.append(Character.toUpperCase(s.charAt(i)));
}
}
result = sb.reverse().toString();
System.out.println(result);
String letter = "AbcDE";
StringBuffer sb = new StringBuffer();
for(int i=letter.length()-1; i>=0; i--){
char c =letter.charAt(i);
String cs = String.valueOf(c);
if(c<='z' && c>='a'){
sb.append(cs.toUpperCase());
}else if(c<='Z' && c>='A'){
sb.append(cs.toLowerCase());
}
}
System.out.println(sb);
}
{
fun05();//调用楼上方法
}
StringBuffer s=new StringBuffer(str);
s=s.reverse();
str=new String(s);
str=str.toLowerCase(str);