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Create Remove Element from Array .java

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	`1`	`+/*`
	`2`	`+Remove Element`
	`3`	`+`
	`4`	`+Given an array and a value, remove all the instances of that value in the array.`
	`5`	`+Also return the number of elements left in the array after the operation.`
	`6`	`+It does not matter what is left beyond the expected length.`
	`7`	`+`
	`8`	`+ Example:`
	`9`	`+If array A is [4, 1, 1, 2, 1, 3]`
	`10`	`+and value elem is 1,`
	`11`	`+then new length is 3, and A is now [4, 2, 3]`
	`12`	`+Try to do it in less than linear additional space complexity.`
	`13`	`+*/`
	`14`	`+`
	`15`	`+public class Solution {`
	`16`	`+ public int removeElement(ArrayList<Integer> a, int b) {`
	`17`	`+ a.removeAll(Arrays.asList(b));`
	`18`	`+ return a.size();`
	`19`	`+ }`
	`20`	`+}`

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