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Interview Questions and Answers for 'Digite infotech' - 1 question(s) found - Order By Newest

Very frequently asked in HCL Tech ( Based of 4 inputs )
  Q1. Write a program to reverse a string iteratively and recursively ?Core Java
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Ans. Using String method -

new StringBuffer(str).reverse().toString();

Iterative -

public static String getReverseString(String str){
StringBuffer strBuffer = new StringBuffer(str.length);
for(int counter=str.length -1 ; counter>=0;counter--){
strBuffer.append(str.charAt(counter));
}
return strBuffer;
}

Recursive -

public static String getReverseString(String str){
if(str.length <= 1){
return str;
}
return (getReverseString(str.subString(1)) + str.charAt(0);
}

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   Like      Discuss      Correct / Improve     java   string   reverse   stringbuffer   string class   code     HCL Technologies  Exelis  Mahindra Comviva  Fidelity National Information Services (FIS)   Genpact  Digite Infotech        frequent


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