Quick Answer: Java How To Print Array?

How do you print an array in Java?

You cannot print array elements directly in Java, you need to use Arrays. toString() or Arrays. deepToString() to print array elements. Use toString() if you want to print one-dimensional array and use deepToString() method if you want to print two-dimensional array.

How do you print an array of arrays?

Java – Print array elements

  1. Arrays. toString() to print simple arrays. Recommended way to print the content of an array is using Arrays.
  2. Arrays. deepToString() to print multi-dimensional array.
  3. Complete code. Below is the Java program to print single as well as nested arrays in Java.

How do I print a string array of strings?

Example of toString() method

  1. import java.util. Arrays;
  2. public class PrintArrayExample3.
  3. {
  4. public static void main( String [] args)
  5. {
  6. //declaring and initializing array.
  7. int array [] = {34,-10, 56, -9, -33};
  8. //returns string representation of the specified array.
You might be interested:  Often asked: What Is A Map In Java?

How do I make a copy of an array in Java?

Array in java can be copied to another array using the following ways.

  1. Using variable assignment. This method has side effects as changes to the element of an array reflects on both the places.
  2. Create a new array of the same length and copy each element.
  3. Use the clone method of the array.
  4. Use System.

What is array toString Java?

toString (int[]) method returns a string representation of the contents of the specified int array. The string representation consists of a list of the array’s elements, enclosed in square brackets (“[]”). Adjacent elements are separated by the characters “, ” (a comma followed by a space).

How do I print in Java?

The above method first invokes the print (String) method and then println() method. println() Method.

Overloaded Method Prints
print (long l) A long integer
print (int i) An integer
print (object obj) An object
print (String s)

How do you return an array?

How to return an array in Java

  1. import java.util. Arrays;
  2. public class ReturnArrayExample1.
  3. {
  4. public static void main(String args[])
  5. {
  6. int[] a=numbers(); //obtain the array.
  7. for (int i = 0; i < a.length; i++) //for loop to print the array.
  8. System.out.print( a[i]+ ” “);

How do you use array length in Java?

The length property can be invoked by using the dot (.) operator followed by the array name.

  1. int[] arr=new int[5];
  2. int arrayLength =arr. length.

How do I print an array of elements in one line?

“ how to print array elements in single line in java” Code Answer

  1. import java. util. Arrays;
  2. public class Array {
  3. public static void main(String[] args) {
  4. int[] array = {1, 2, 3, 4, 5};
  5. System. out. println( Arrays. toString( array ));
You might be interested:  FAQ: How To Return Array In Java?

How do I print an Arraylist without brackets?

the most simple solution for removing the brackets is,

  1. convert the arraylist into string with. toString() method.
  2. use String. substring(1,strLen-1). (where strLen is the length of string after conversion from arraylist ).
  3. Hurraaah..the result string is your string with removed brackets.

How do I convert a string to an array?

Given a string, the task is to convert this string into a character array in Java. Step 1: Get the string.

  1. Step 1:Get the string.
  2. Step 2:Create a character array of same length as of string.
  3. Step 3:Store the array return by toCharArray() method.
  4. Step 4:Return or perform operation on character array.

How do you write a string array?

Iteration of String Array

  1. String [] strAr = {“Ani”, “Sam”, “Joe”};
  2. for (int i=0; i<StrAr. length; i++)
  3. {
  4. System. out. println(strAr[i]);
  5. }
  6. for ( String str: strAr)
  7. {
  8. Sytem. out. println(str);

Which of these is an incorrect array declaration?

Which of these is an incorrect array declaration? Explanation: Operator new must be succeeded by array type and array size.

Is arrays copy of a deep copy?

No, it does not. When you assign a new object to the “original” array, this does not affect the copy.

How do you sort arrays in Java?

Using the for Loop

  1. public class SortArrayExample2.
  2. {
  3. public static void main(String[] args)
  4. {
  5. //creating an instance of an array.
  6. int[] arr = new int[] {78, 34, 1, 3, 90, 34, -1, -4, 6, 55, 20, -65};
  7. System.out.println(” Array elements after sorting:”);
  8. // sorting logic.

Leave a Reply

Your email address will not be published. Required fields are marked *