547f99925f
* Added the code of Replace char in a string at specific index * added test cases * Renamed the Test class name end with UnitTest * Renamed the Test class name end with UnitTest * Renamed the Test class name end with UnitTest * Replaced README with the upstream repo
22 lines
689 B
Java
22 lines
689 B
Java
package com.baeldung.string;
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public class ReplaceCharacterInString {
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public String replaceCharSubstring(String str, char ch, int index) {
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String myString = str.substring(0, index) + ch + str.substring(index+1);
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return myString;
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}
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public String replaceCharStringBuilder(String str, char ch, int index) {
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StringBuilder myString = new StringBuilder(str);
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myString.setCharAt(index, ch);
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return myString.toString();
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}
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public String replaceCharStringBuffer(String str, char ch, int index) {
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StringBuffer myString = new StringBuffer(str);
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myString.setCharAt(index, ch);
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return myString.toString();
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}
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}
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