Java Practice Set - 3rd , String Practice Questions in Java

Java Practice Set - 3rd , Java String Practice Questions

Here are some Java strings practice questions that if you will practice enough you will end up becomming the good java developer in future

[1] Input 2 strings with the help of a scanner class and then add/concatenate those two strings

for eg: "Welcome to " + "my Channel ClassGenix " = "Welcome to my channel ClassGenix"

[2] Enter string and perform operations on that string as follows:

String = "A Quick Brown Fox Jumps Over A Lazy Fox"

[a] Find the length of the string

[b] Remove the space between each word

[c] Replace "O" with your name

[d] Convert it into UpperCase

[e] Convert it into LowerCase

[3] Find the length of the Following String

[a] "Hello My Name is Sachin Malhotra"

[b] "Wish you all the best"

[4] Find the last index of "a" in this string , "Name on your aadhar card"

[5] Compare 2 strings with the help of "equal()" method and "equalIgnoreCase()" method

[6] What will be the substring of the following

"Hello World , My Name is Josh"

[a] Substring(3,9);

[b] Substring(8);

Please Download the notes and practice set of this concept : Click Here

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CODE SNIPPET IS SHOWN BELOW

package practice.set.pkg3;

import java.util.Scanner;
public class PracticeSet3 {

    public static void main(String[] args) {
        Scanner ref=new Scanner(System.in);
        
        String Str1 = "Hello"; // first string
        String Str2 = "World"; // second string
        
        // in order to concatenate we must use arithmetic operator.
        
        String Str3 = Str1+Str2;
        System.out.println(Str3);
        
        
        // second question
        
        String Name = "A Quick Brown Fox Jumps Over A Lazy Fox";
        String NameS=Name.replace(" ", "");
        // " " = Space
        // "" = No Space
        System.out.println(NameS);
        
        // question 4
        
        String Str4 = "Name on your adhaar card";
        int index=Str4.lastIndexOf("a");
        System.out.println(index);
        
        // question 6
        String Josh = "Hello World, My Name is Josh";
        String Josh2 = Josh.substring(3,9);
        // Hello World  , M y N a m e i s J o s h
        // 01234567891011 12.........
        //  print =lo Wor
        String Josh3 = Josh.substring(8);
        System.out.println(Josh2);
        System.out.println(Josh3);
    }
    
}

Java Practice Set - 3rd , String Practice Questions in Java

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