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Java Exercises: Create a new array from a given array of integers, new array will contain the elements from the given array before the last element value 10

Java Basic: Exercise-104 with Solution

Write a Java program to create a new array from a given array of integers, new array will contain the elements from the given array before the last element value 10.

Pictorial Presentation:

Java Basic Exercises: Create a new array from a given array of integers, new array will contain the elements from the given array before the last element value 10

Sample Solution:

Java Code:

import java.util.*; 
import java.io.*; 
 public class Exercise104 {
 public static void main(String[] args)
 {
	int[] array_nums = {11, 15, 13, 10, 45, 20, 33, 53};
    int result = 0; 
	System.out.println("Original Array: "+Arrays.toString(array_nums)); 
	
	int l = 0;
	int[] new_array;
	while(array_nums[l] != 10)
	  l++;
	new_array = new int[l];
	for(int i = 0; i < l; i++)
		new_array[i] = array_nums[i];
	System.out.println("New Array: "+Arrays.toString(new_array)); 
  }
}

Sample Output: 

Original Array: [11, 15, 13, 10, 45, 20, 33, 53]                       
New Array: [11, 15, 13]

Flowchart:

Flowchart: Java exercises: Create a new array from a given array of integers, new array will contain the elements from the given array before the last element value 10

Java Code Editor:

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Previous: Write a Java program to create a new array from a given array of integers, new array will contain the elements from the given array after the last element value 10.
Next: Write a Java program to check if a group of numbers (l) at the start and end of a given array are same.

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Java: Tips of the Day

Try and catch:

Java is excellent at catching errors, but it can only recover gracefully if you tell it what to do. The cascading hierarchy of attempting to perform an action in Java starts with try, falls back to catch, and ends with finally. Should the try clause fail, then catch is invoked, and in the end, there's always finally to perform some sensible action regardless of the results. Here's an example:

try {
        cmd = parser.parse(opt, args); 
       
        if(cmd.hasOption("help")) {
                HelpFormatter helper = new HelpFormatter();
                helper.printHelp("Hello ", opt);
                System.exit(0);
                }
        else {
                if(cmd.hasOption("shell") || cmd.hasOption("s")) {
                String target = cmd.getOptionValue("tgt");
                } // else
        } // fi
} catch (ParseException err) {
        System.out.println(err);
        System.exit(1);
        } //catch
        finally {
                new Hello().helloWorld(opt);
        } //finally
} //try

It's a robust system that attempts to avoid irrecoverable errors or, at least, to provide you with the option to give useful feedback to the user. Use it often, and your users will thank you!

Ref: https://red.ht/3EZc9OC