Java Practice Set 3

QUESTIONS - 

SOLUTIONS/CODE --- 

package com.company;

public class PS3 {
    public static void main(String[] args) {

// Q1 - Write a JAVA program to covert a string to lowercase

        String str  = "String";
        str = str.toLowerCase();
        System.out.println(str);

// Q2 - Write a JAVA program to replace spaces with underscore

        String text = "Write a JAVA program to replace spaces with underscore";
        text  = text.replaceAll(" ", "_");
        System.out.println(text);

/* Q3 - Write a JAVA program to fill in a template which looks like below
        template = "Dear<|name|>, Thanks a lot"
        Replace 'name' with someone's name*/

        String template = "Dear <|name|>, Thanks a lot";
        template  = template.replace("<|name|>", "Saswata");
        System.out.println(template);

// Q4 - Write a JAVA program to detect double or triple spaces in a string

        String mystr = "This string contains  double and   triple spaces";
        System.out.println(mystr.indexOf("  "));
        System.out.println(mystr.indexOf("   "));

/* Q5 - Write a program to format the following letter using escape sequence characters
        letter = "Dear Harry,This JAVA course is so nice, thanks." */

        System.out.println("\tDear Coder,\n \t \t This JAVA course is so nice.\n\t \t Thanks.");
    }
}