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This is the first solution to extract characters and numbers from an alpha numeric value into separate strings. This program uses the Character class methods.
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This is the first solution to find the Nth largest number from an array of given numbers. This program uses the sort method of the Arrays class.
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This is the second solution to list all the subsets or substrings of a given string. This program does not use the substring method, instead uses the StringBuilder class append method.
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This is the first solution to list all the subsets or substrings of a given string. This uses the String’s class substring method for intermediate processing of all sized sub strings.
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This is the first solution to check the number for Disarium. This solution uses String class, and a couple of Character functions to evaluate the sum of powers. The Disarium number is say for a given number 351, evaluate the powers from the left side as power (3 * 1) + power (5 * 2)
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This is the first solution to reverse all the numbers at even positions. This solution modifies the same array. The resultant array has all the numbers reversed only even positions.
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This is the second solution to move all Zero numbers to the end of an array of integers. This solution uses the temporary array. The resultant array has all non-zero numbers moved left, and all Zero numbers moved to the end.
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This is the first solution to move all Zero numbers to the end of an array of integers. This solution modifies the same array with all non-zero numbers moving left, and Zero numbers moved to the end.
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This is the second solution to count whether any of the number in an array repeated twice or thrice from the same array of integers using Collections class.
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This is the first solution to count whether any of the number in an array repeated twice or thrice from the same array of integers using HashMap collection.
Java Ice Breakers 