title: Next Power Of 2
signature: class Solution {
  
      public Integer nextPowerOf2(Integer n) {
source_py: def next_power_of_2(n):
      count = 0
      if (n and (not (n & (n - 1)))):
          return n
      while (n != 0):
          n >>= 1
          count += 1
      return (1 << count)
source_cpp: unsigned int next_power_of_2(unsigned int n) {
    unsigned count = 0;
    if ( n && ! ( n & ( n - 1 ) ) ) return n;
    while ( n != 0 ) {
      n >>= 1;
      count += 1;
    }
    return 1 << count;
  }
question_info.extension: java
question_info.entry_fn_name: nextPowerOf2
question_info.entry_cls_name: Solution
question_info.test_list: [{"idx": 0, "outputs": 128, "inputs": {"n": 74}}, {"idx": 1, "outputs": 128, "inputs": {"n": 70}}, {"idx": 2, "outputs": 128, "inputs": {"n": 85}}, {"idx": 3, "outputs": 128, "inputs": {"n": 78}}, {"idx": 4, "outputs": 128, "inputs": {"n": 71}}, {"idx": 5, "outputs": 32, "inputs": {"n": 32}}, {"idx": 6, "outputs": 128, "inputs": {"n": 97}}, {"idx": 7, "outputs": 128, "inputs": {"n": 90}}, {"idx": 8, "outputs": 64, "inputs": {"n": 64}}, {"idx": 9, "outputs": 64, "inputs": {"n": 48}}]
question_info.test_code: import static java.util.Map.entry;  
  import java.util.*;
  import java.lang.*;
  // TESTING CODE 
  // ============================================
  class QuestionEvaluator {
      public static String validateSolution(Integer n, Integer expected){
          try{
              Driver driver = new Driver();
              if (driver.run(n,expected)){
                  return "PASSED";
              }
              return "FAILED";
              
          } catch (Exception exception_obj){
              return exception_obj.getClass().getSimpleName();
          }
  
      }
      public static void main(String[] args) {
          String result;
          result = validateSolution(74, 128);
          System.out.println(String.format("%s%s","TEST-0...",result));    
      
          result = validateSolution(70, 128);
          System.out.println(String.format("%s%s","TEST-1...",result));    
      
          result = validateSolution(85, 128);
          System.out.println(String.format("%s%s","TEST-2...",result));    
      
          result = validateSolution(78, 128);
          System.out.println(String.format("%s%s","TEST-3...",result));    
      
          result = validateSolution(71, 128);
          System.out.println(String.format("%s%s","TEST-4...",result));    
      
          result = validateSolution(32, 32);
          System.out.println(String.format("%s%s","TEST-5...",result));    
      
          result = validateSolution(97, 128);
          System.out.println(String.format("%s%s","TEST-6...",result));    
      
          result = validateSolution(90, 128);
          System.out.println(String.format("%s%s","TEST-7...",result));    
      
          result = validateSolution(64, 64);
          System.out.println(String.format("%s%s","TEST-8...",result));    
      
          result = validateSolution(48, 64);
          System.out.println(String.format("%s%s","TEST-9...",result));    
      
      }
  }
  
  class Driver{
      public boolean run(Integer n, Integer expected){
  
          PLACEHOLDER_CLS_NAME sol = new PLACEHOLDER_CLS_NAME();
          return validateSolution(sol.PLACEHOLDER_FN_NAME(n),expected);
      }
      
      public boolean validateSolution(Integer actual, Integer expected){
          return actual.equals(expected);
      }
  }
  
  
  // SOLUTION CODE
  // ============================================
  PLACEHOLDER_CODE_BODY
question_info.test_case_ids: 0 1 2 3 4 5 6 7 8 9
question_info.commands: java __FILENAME__