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style: enable HideUtilityClassConstructor
in checkstyle (#5147)
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@ -2,7 +2,9 @@ package com.thealgorithms.stacks;
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import java.util.Stack;
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public class InfixToPostfix {
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public final class InfixToPostfix {
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private InfixToPostfix() {
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}
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public static void main(String[] args) throws Exception {
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assert "32+".equals(infix2PostFix("3+2"));
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