Same chapter3 marksDifficulty: Medium
What is the output of: String s = "Programming"; System.out.println(s.indexOf('g') + " " + s.lastIndexOf('g') + " " + s.replace('g', 'G'));
String Handling
3 marksDifficulty: Medium
Write a Java program segment to change the case of every letter of a string s.
Original Khojo Papers practice question — not from a past board paper.
Answer
String r = ""; for (int i = 0; i < s.length(); i++) { char c = s.charAt(i); if (Character.isUpperCase(c)) r += Character.toLowerCase(c); else if (Character.isLowerCase(c)) r += Character.toUpperCase(c); else r += c; }
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Characters that are not letters must be copied through unchanged.
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