Arrays.toString(arr)
----------------------------
for(int n: arr)
System.out.println(n+", ");
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for (int i = 0; i < arr.length; i++) {
System.out.print(arr[i] + ", ");
}
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System.out.println(Arrays.asList(arr));
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Arrays.asList(arr).stream().forEach(s -> System.out.println(s));//java8