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@@ -43,18 +43,40 @@ public class ROT13 {
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public String decrypt(String text) {
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String result = "";
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- int temp = 0;
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int rotator = cf-cs;
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+ boolean isUppercase = false;
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for(int i=0; i<text.length(); i++){
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- temp = (int)text.charAt(i)-rotator;
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+ isUppercase = Character.isUpperCase(text.charAt(i));
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+ int temp = Character.toLowerCase(text.charAt(i));
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+ if (temp<97|temp>122){
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+ } else if(temp-rotator > 97){
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+ temp = (int)text.charAt(i)-rotator;
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+ } else {
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+ temp = 122 - (96-(temp-rotator));
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+ }
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+ if(isUppercase){temp=Character.toUpperCase(temp);}
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result+= (char)temp;
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}
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return result;
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}
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public static String rotate(String s, Character c) {
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-
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- return "";
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+ String result = "";
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+ int rotator = Character.toLowerCase(c)-'a';
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+ boolean isUppercase = false;
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+ for(int i=0; i<s.length(); i++){
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+ isUppercase = Character.isUpperCase(s.charAt(i));
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+ int temp = Character.toLowerCase(s.charAt(i));
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+ if (temp<97|temp>122){
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+ } else if(temp+rotator < 122){
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+ temp = s.charAt(i)+rotator;
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+ } else {
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+ temp = 96 + ((temp+rotator)-122);
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+ }
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+ if(isUppercase){temp=Character.toUpperCase(temp);}
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+ result+= (char)temp;
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+ }
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+ return result;
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}
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}
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