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Arrays in Java (Part 5)

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Arrays in Java: (Part 5)

One Dimensional Array :

4. Print the strings that are of even length from an array of strings
5. Print the strings that start with a vowel from an array of strings
6. Print the strings that ends with a vowel from an array of strings

  • Example: (Print the strings that are of even length)
    // find the longest string in a string array
    import java.util.Scanner;
    class test
    {
    public static void main(String ar[])
    {
    Scanner scan = new Scanner(System.in);
    System.out.println("Enter the size of array:");
    int size = scan.nextInt();
    String array[] = new String[size];
    scan.nextLine(); // clear the buffer after integer input
    for(int i=0;i<array.length;i++)
    {
    System.out.println("Enter "+i+" string");
    array[i] = scan.nextLine();
    }
    for(int i=0;i<array.length;i++)
    {
    if(array[i].length()%2==0) // if the length of string is even
    {
    System.out.println(array[i]+" has length "+array[i].length());
    }
    }
    }
    }
    /* OUTPUT:
    Enter the size of array:
    5
    Enter 0 string
    blah blah blah
    Enter 1 string
    blah blah
    Enter 2 string
    blah blah blah blah
    Enter 3 string
    blah blah blah blah hahahaha
    Enter 4 string
    blah
    blah blah blah has length 14
    blah blah blah blah hahahaha has length 28
    blah has length 4
    */
    view raw pattern.java hosted with ❤ by GitHub
  • Example: (Print the strings that start with a vowel)
    // find the strings that begins with a vowel from an array of Strings.
    import java.util.Scanner;
    class test
    {
    public static void main(String ar[])
    {
    Scanner scan = new Scanner(System.in);
    System.out.println("Enter the size of array:");
    int size = scan.nextInt();
    String array[] = new String[size];
    scan.nextLine(); // clear the buffer after integer input
    for(int i=0;i<array.length;i++)
    {
    System.out.println("Enter "+i+" string");
    array[i] = scan.nextLine();
    }
    for(int i=0;i<array.length;i++)
    {
    if(array[i].charAt(0)=='a' || array[i].charAt(0)=='e' || array[i].charAt(0)=='i' || array[i].charAt(0)=='o' || array[i].charAt(0)=='u')// if the first character is a vowel
    {
    System.out.println(array[i]+" begins with a vowel");
    }
    }
    }
    }
    /* OUTPUT:
    Enter the size of array:
    5
    Enter 0 string
    orange
    Enter 1 string
    apple
    Enter 2 string
    mango
    Enter 3 string
    pear
    Enter 4 string
    avocado
    orange begins with a vowel
    apple begins with a vowel
    avocado begins with a vowel
    */
    view raw pattern.java hosted with ❤ by GitHub
  • Example: (Print the strings that end with a vowel)
    // find the strings that ends with a vowel
    import java.util.Scanner;
    class test
    {
    public static void main(String ar[])
    {
    Scanner scan = new Scanner(System.in);
    System.out.println("Enter the size of array:");
    int size = scan.nextInt();
    String array[] = new String[size];
    scan.nextLine(); // clear the buffer after integer input
    for(int i=0;i<array.length;i++)
    {
    System.out.println("Enter "+i+" string");
    array[i] = scan.nextLine();
    }
    for(int i=0;i<array.length;i++)
    {
    // charAt(length_of_the_string -1) will give you the last character of that string
    int x = array[i].length()-1;
    if(array[i].charAt(x)=='a' || array[i].charAt(x)=='e' || array[i].charAt(x)=='i' || array[i].charAt(x)=='o' || array[i].charAt(x)=='u')// if the first character is a vowel
    {
    System.out.println(array[i]+" ends with a vowel");
    }
    }
    }
    }
    /* OUTPUT:
    Enter the size of array:
    5
    Enter 0 string
    orange
    Enter 1 string
    mango
    Enter 2 string
    banana
    Enter 3 string
    pear
    Enter 4 string
    kiwi
    orange ends with a vowel
    mango ends with a vowel
    banana ends with a vowel
    kiwi ends with a vowel
    */
    view raw pattern.java hosted with ❤ by GitHub

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