How do you return a table in Java?

How do you return a list in Java?

The list() method of java. util. Collections class is used to return an array list containing the elements returned by the specified enumeration in the order they are returned by the enumeration.

Can you return text in Java?

There’s no problem with returning Strings in this manner. In Java, a String is a reference to an immutable object.

How do you print a chart in Java?

To print any information in a tabular structure in Java, we can use the printf() or format() method of the class java. io. PrintStream .

How do I return an array in Java?

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
  8. System.out.print( a[i]+ ” “);

How do you return a string list in Java?

2 Answers

  1. integer : It will either be an int or an Integer . Use ArrayList.
  2. new List : It’s an interface. You can’t instantiate an interface.
  3. ‘Test’ : Single quotes is used for Character literal, for Strings use double quotes.
  4. Also, there’s no need of string. valueOf(i) .
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How do I return a StringBuilder in Java?

The toString() method of the StringBuilder class is the inbuilt method used to return a string representing the data contained by StringBuilder Object. A new String object is created and initialized to get the character sequence from this StringBuilder object and then String is returned by toString().

What is return in Java with example?

A return statement causes the program control to transfer back to the caller of a method. Every method in Java is declared with a return type and it is mandatory for all java methods. A return type may be a primitive type like int, float, double, a reference type or void type(returns nothing).

How do you print a table?

To print a table:

  1. To select all the cells in the table, click the first cell and scroll to the last cell. …
  2. Click File > Print > Print.
  3. Select Current Selection if it isn’t already selected, and then click Print.
  4. If you like the print preview, click Print.

What is a table in Java?

Guava’s Table is a collection that represents a table like structure containing rows, columns and the associated cell values. The row and the column act as an ordered pair of keys. The row and column act as an ordered pair of keys.

How do you write data in tabular format in Java?

Steps to print table:

  1. Table data – Take table data in 2 dimensional array format. …
  2. Column Lengths – For each column, check length of all strings in that column. …
  3. Format string – Prepare format string for printf method using column widths calculated in earlier step.
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How do you return an empty array in Java?

Return an Empty Array Using new int[0] in Java

To return an empty array from a function, we can create a new array with a zero size. In the example below, we create a function returnEmptyArray() that returns an array of int . We return new int[0] that is an empty array of int .

How do you pass and return an array in Java?

Use the Arrays class to both sort and display the entire array. Next, pass the array as the sole argument to a method that doubles each element of the array and then returns the array. Use a foreach loop to show all elements in the returned array on one line separated by a single space.

How do I return multiple variables in Java?

Returning Multiple values in Java

  1. If all returned elements are of same type.
  2. If returned elements are of different types.
  3. Using Pair (If there are only two returned values) We can use Pair in Java to return two values.
  4. If there are more than two returned values. …
  5. Returning list of Object Class.