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SkipLetter.java
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55 lines (48 loc) · 1.56 KB
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package Recursion;
public class SkipLetter {
private static String skip(String str, String target, int index) {
String s = "";
if (index == str.length())
return s;
if (target.equals(str.charAt(index) + ""))
s = "" + skip(str, target, index + 1);
else
s = str.charAt(index) + skip(str, target, index + 1);
return s;
}
private static String skip(String str, String target) {
String s = "";
if (str.length() == 0)
return s;
if (target.equals(str.charAt(0) + ""))
s = "" + skip(str.substring(1), target);
else
s = str.charAt(0) + skip(str.substring(1), target);
return s;
}
private static void skip(String str, String target, String ans) {
if (str.length() == 0) {
System.out.println(ans);
return;
}
if (target.equals(str.charAt(0) + ""))
skip(str.substring(1), target, ans);
else
skip(str.substring(1), target, ans + str.charAt(0));
}
private static String skip(String str) {
if (str.length() == 0) {
return "";
}
if (str.charAt(0) == 'a')
return skip(str.substring(1));
else
return str.charAt(0) + skip(str.substring(1));
}
public static void main(String[] args) {
System.out.println(skip("baccad", "a", 0));
System.out.println(skip("baccad", "a"));
skip("baccadah", "a", "");
System.out.println(skip("baccadadeda"));
}
}