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Java String Interview Questions

  1. What is String Class In Java ?
  2. What is String Constant Pool In Java ?
  3. How to Create Immutable Class In Java ?
  4. What is String Concatenation In Java ?
  5. What is Difference Between StringBuffer and StringBuilder In Java ?
  6. Write a Java Program to check String is Palindrome or not ?
  7. Java Program to find Duplicate Character From String ?
  8. Java Program to Count Numbers of Characters From String ?
  9. Write a Java Program to Reverse String ?
  10. Write a Java Program to count and Print all the Vowels and Consonants From String ?
  11. Write a Java Program to Convert Numeric String Into int ?
  12. What are different ways to create String Object ?
  13. Write a java program to reverse each word of a given String ?
  14. Write a java program to find the duplicate words and their number of occurrences in a String ?
  15. Write a java program to remove all white spaces from a String ?
  16. Java program to check whether one string is rotation of another String ?
  17. Write a Java Program To Reverse The String With Preserving The Position Of Spaces ?
  18. Write a Java Program to Sort the String ?
  19. Write a java program to count the number of words in a String ?
  20. Write a Java Program to Count UpperCase Character in Given String ?
  21. Write a Java Program to remove duplicate characters from String using any API ?
  22. Write a Java Program to remove duplicate characters from String Without Using any API ?
  23. Write a Java Program to Check weather two Strings are Anagram or Not ?
  24. Write a Java Program to Find First Repeated And Non-Repeated Character from given String ?
  25. Write a Java Program to Find Longest Substring Without Repeating Characters In Java ?

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