Java program: Get character before index
As a Systems Engineer at Tata Consultancy Services, I deliver exceptional software products for mobile and web platforms, using agile methodologies and robust quality maintenance. I am experienced in performance testing, automation testing, API testing, and manual testing, with various tools and technologies such as Jmeter, Azure LoadTest, Selenium, Java, OOPS, Maven, TestNG, and Postman.
I have successfully developed and executed detailed test plans, test cases, and scripts for Android and web applications, ensuring high-quality standards and user satisfaction. I have also demonstrated my proficiency in manual REST API testing with Postman, as well as in end-to-end performance and automation testing using Jmeter and selenium with Java, TestNG and Maven. Additionally, I have utilized Azure DevOps for bug tracking and issue management.
Write a Java program to get the character (Unicode code point) before the specified index within the string.
public class demo {
public static void main(String[] args) {
String str = "GulshanKumar";
int givenIndex = 4;
int len = str.length();
// Index should be more than 0 and less than the length-1 of string because
// 0 index is the last index in string
if ((givenIndex>0) && (givenIndex<len)){
for (int i=0; i<len; i++){
if ((str.charAt(i))==(str.charAt(givenIndex))){
System.out.println(str.codePointBefore(i));
System.out.println(str.charAt(i-1));
break;
}
}
} else {
System.out.println("Given index is incorrect please select more than " +
"\n0 and less than or equal to "+ (len-1) +" only");
}
}
} // main block
/*Output----
115
s
*/
