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Bookmark or Share- What's the simplest way to print a Java array? - Stack OverflowSince Java 5 you can use Arrays.toString(arr) or Arrays.deepToString(arr) for arrays within arrays. Note that the Object[] version calls .toString() on each object in the array. The output is even decorated in the exact way you're asking. Examples: Simple Array:
- C# Creating an array of arrays - Stack OverflowI think you may be looking for Jagged Arrays, which are different from multi-dimensional arrays (as you are using in your example) in C#. Converting the arrays in your declarations to jagged arrays should make it work. However, you'll still need to use two loops to iterate over all the items in the 2D jagged array.
- equivalent to push () or pop () for arrays? - Stack OverflowI strongly discourage the use of this method. For really simple and small arrays it won't impose problems, but for a medium or heavy array this will cause the system to iterate over the array every time an item is added. If you have a 100+ items array and want to add more 3 items, it will do 303 operations. –
- How to store arrays in MySQL? - Stack OverflowThat said, arrays don't map well databases which is why object-relational maps can be quite complex. Historically people have stored lists/arrays in MySQL by creating a table that describes them and adding each value as its own record. The table may have only 2 or 3 columns, or it may contain many more.
- How to make an array of arrays in Java - Stack OverflowArrays are cumbersome, in most cases you are better off using the Collection API. With Collections, you can add and remove elements and there are specialized Collections for different functionality (index-based lookup, sorting, uniqueness, FIFO-access, concurrency etc.).
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