print array in the log cat android

Question

How can I print the arr variable in the log to see the results of the array thanks,

 public void onClick(View v) {
     if(v.getId()==R.id.buttonone)
     {
          genrandom grandom =new genrandom();
          int[] arr=new int[50];
          arr = new  gen_random_number().genrandom(arr, yourXvalue);
     }
 }

Solution 1

You can use Arrays.toString

Log.d("this is my array", "arr: " + Arrays.toString(arr));
// or
System.out.println("arr: " + Arrays.toString(arr));

Or, if your array is multidimensional, use Arrays.deepToString()

String[][] x = new String[][] {
    new String[] { "foo", "bar" },
    new String[] { "bazz" }
};
Log.d("this is my deep array", "deep arr: " + Arrays.deepToString(x));
// or
System.out.println("deep arr: " + Arrays.deepToString(x));
// will output: [[foo, bar], [bazz]]

Solution 2

Very simple use for each loop much fast then normal for (incremental) loop.

for(String log : array)
{
  Log.v("Tag",log);
}

Solution 3

You can use for each loop

for(int x: arr){
Log.d(tag,"x:"+x);
}

Comments

[Mohd Mufiz]

absolutely correct and acceptable answer.

[assylias]

@user1760556 tag can be any string you want. From the javadoc: "Used to identify the source of a log message. It usually identifies the class or activity where the log call occurs."

[Deepak]

Not working for two-dimensional array.

[Alex]

deepToString is working for two-dimensional array