JAVA

length of array in java

arr.length;

how to find length of array in java

let coolCars = ['ford', 'chevy'];
//to find length, use the array's built in method
let length = coolCars.length;
//length == 2.

how to increase the size of array in java

// Use this function
public void increaseSize() {
   String[] temp = new String[original.length + 1];
   
   for (int i = 0; i < original.length; i++){
      temp[i] = original[i];
   }
   original = temp;
}

finding length of arrays in java

int size = arr[].length;

// length can be used 
// for int[], double[], String[] 
// to know the length of the arrays.

Length of Array in Java

String[] cars = {"Volvo", "BMW", "Ford", "Mazda"};
System.out.println(cars[0]);

// Change elements in array
cars[0] = "Opel";
System.out.println(cars[0]);

// Length of array
System.out.println(cars.length);

// Loop through array
for (int i = 0; i < cars.length; i++) {
  System.out.println(cars[i]);
}

set array length java

int[] num = new int[5];