[Solved] Please some information regarding Java code [closed]

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a = 0 is wrong since a is an int array. You’re probably looking for a counter variable. It could be like this:

boolean existsData = false;
for(int i=0; i<arr.length; i++)
    //arr[i] = 0 means assign 0 to arr[i]
    //note that I'm using different (!=)
    existsData = (arr[i] != 0);
    if (existsData) {
        break;
    }
}
return existData;

Or even easier, without using a boolean variable:

for(int i=0; i<arr.length; i++)
    if (arr[i] != 0) {
        return false;
    }
}
return true;

Or, if you really mean no elements in the array, and not “no 0 elements”:

boolean isEmpty(int[] arr) {
  return arr.length == 0; 
}

2

solved Please some information regarding Java code [closed]