Which String Function is use to combine 2 Strings? | Automation Testing Interview Question
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Hello everyone, today we are going to explore some of the most commonly used string functions in Java. Strings are a fundamental part of programming, and Java provides a wide range of built-in functions to manipulate them.
One of the most basic string functions is length, which returns the number of characters in a string. This can be useful for tasks such as input validation or setting the size of data structures.
Another important function is charAt, which allows you to access individual characters in a string by their index. Remember that in Java, indexing starts at 0.
You can also use the substring function to extract a portion of a string based on its index. This can be handy for tasks like parsing data or creating substrings for display.
Lastly, the indexOf function is useful for finding the position of a specific character or substring within a string. This can help you search for patterns or keywords in your data.
These are just a few examples of the many string functions available in Java. Experiment with them in your projects to see how they can simplify your programming tasks. Thanks for watching the video, and don't forget to subscribe to our channel for more tutorials and tips.
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Guess the output of below program?
String a="SoftwareTesting";
String d="World";
System.out.println(a.length());
System.out.println(a.charAt(4));
System.out.println(a.toUpperCase());
String b="MANISHkumarTIWARI";
System.out.println(b.toUpperCase());
System.out.println(b.toLowerCase());
System.out.println(a.concat("testing"));
System.out.println(a.substring(3));
System.out.println(a.substring(2, 4));
System.out.println(b.contains("software"));
System.out.println(a.matches("software"));
String c=" I am going to my Native ";
System.out.println(c);
System.out.println(c.trim());
System.out.println(a.endsWith("E"));
System.out.println(a.contains("aa"));
System.out.println(b.equals(a));
System.out.println(a.lastIndexOf('s'));
System.out.println(a.lastIndexOf("ar"));
System.out.println(a.isEmpty());
boolean c= name.equalsIgnoreCase(name1);
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