Undulating Number in JavaIn this section, we will learn what is an undulating number and also create Java programs to check if the given number is a undulating number or not. The undulating number program is frequently asked in Java coding interviews and academics. Undulating NumberAn undulating number is a number that has only two types of digits and the alternate digits are same, i.e., it must be of the form "ABABAB...." when it is in the base 10 number system. It is sometimes restricted to nontrivial undulating numbers which are required to have at least three digits and A is not equal to B. Undulating Number ExampleThe first few undulating numbers are: 101, 121, 131, 141, 151, 161, 171, 181, 191, 202, 212, 232, 242, 252, 262, 272, 282, 292, 303, 313, 323, 343, 353, 363, 373, 383, 393, 404, 414, 424, 434, 454, 464, 474, 484, 494, ... Some larger undulating numbers are: 1010, 6363, 80808, 171717, 989898989. Properties of an Undulating Number
Undulating Number Java ProgramConsider the following example in which we have checked whether the given TestUndulatingNumber.java Output 1: Output 2: In this way, we have learned about undulating number and Java program to
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