What's the easiest manner to mark a Java array?

Successful Java, arrays don't override toString(), truthful if you attempt to mark 1 straight, you acquire the className + '@' + the hex of the hashCode of the array, arsenic outlined by Object.toString():

int[] intArray = new int[] {1, 2, 3, 4, 5};System.out.println(intArray); // Prints something like '[I@3343c8b3'

However normally, we'd really privation thing much similar [1, 2, 3, 4, 5]. What's the easiest manner of doing that? Present are any illustration inputs and outputs:

// Array of primitives:int[] intArray = new int[] {1, 2, 3, 4, 5};// Output: [1, 2, 3, 4, 5]// Array of object references:String[] strArray = new String[] {"John", "Mary", "Bob"};// Output: [John, Mary, Bob]

Since Java 5 you tin usage Arrays.toString(arr) oregon Arrays.deepToString(arr) for arrays inside arrays. Line that the Object[] interpretation calls .toString() connected all entity successful the array. The output is equal embellished successful the direct manner you're asking.

Examples:

• Elemental Array:

  String[] array = new String[] {"John", "Mary", "Bob"};System.out.println(Arrays.toString(array));

  Output:

  [John, Mary, Bob]

• Nested Array:

  String[][] deepArray = new String[][] {{"John", "Mary"}, {"Alice", "Bob"}};// Gives undesired output:System.out.println(Arrays.toString(deepArray));// Gives the desired output:System.out.println(Arrays.deepToString(deepArray));

  Output:

  [[Ljava.lang.String;@106d69c, [Ljava.lang.String;@52e922][[John, Mary], [Alice, Bob]]

• double Array:

  double[] doubleArray = { 7.0, 9.0, 5.0, 1.0, 3.0 };System.out.println(Arrays.toString(doubleArray));

  Output:

  [7.0, 9.0, 5.0, 1.0, 3.0 ]

• int Array:

  int[] intArray = { 7, 9, 5, 1, 3 };System.out.println(Arrays.toString(intArray));

  Output:

  [7, 9, 5, 1, 3 ]

Ever cheque the modular libraries archetypal.

import java.util.Arrays;

Past attempt:

System.out.println(Arrays.toString(array));

oregon if your array comprises another arrays arsenic components:

System.out.println(Arrays.deepToString(array));

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