How to realize the Sum of three numbers in java

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Given an array nums containing n integers, it is determined whether there are three elements in nums such that a + b + c = 0? Find all triples that meet the criteria and do not repeat.

Note: duplicate triples cannot be included in the answer.

For example, given the array nums = [- 1, 0, 1, 2,-1,-4], the set of triples that meet the requirements is: [- 1, 0, 1], [- 1,-1, 2]]

Parsing:

Note that the prefixes are compared. If the prefixes do not match, there is basically no need to compare later. In fact, it can be optimized. When the pre is empty, there is no need for comparison.

What are the basic data types of java? the basic data types of Java can be divided into: 1. Integer types, which are used to represent the data types of integers. 2. Floating point type, which is used to represent the data type of decimals. 3. Character type. The keyword of character type is "char". 4. Boolean type, which is the basic data type that represents logical values.

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