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jsquared21

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Modify Ex 21.4

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Original file line number	Diff line number	Diff line change
`@@ -23,7 +23,7 @@ public static void main(String[] args) throws Exception {`
`23`	`23`	`}`
`24`	`24`
`25`	`25`	`// Create a set to store vowels`
`26`		`-Set<Character>set =newHashSet(Arrays.asList('A','E','I','O','U'));`
	`26`	`+Set<Character>set =newHashSet<>(Arrays.asList('A','E','I','O','U'));`
`27`	`27`	`intvowels =0;// Counts the number of vowels`
`28`	`28`	`intconsonants =0;// Counts the number of consonants`
`29`	`29`

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