JAVA Strings Online Test

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Instructions:

  • Total number of questions: 10.
  • Time allotted: 10 minutes.
  • Each question carries 1 mark.
  • No negative marks.
  • DO NOT refresh the page.
  • All the best :-)

What You Will Learn:

This Java Strings Online Test helps you to Boost your Knowledge in Java. In this test, we cover topics in the form of questions like:
  • String immutability and memory optimization through the String Constant Pool.
  • String literals vs explicitly instantiated objects via the new operator.
  • Reference identity comparison (==) versus content equality (equals() and equalsIgnoreCase()).
  • Differences between String, synchronized StringBuffer, and fast non-synchronized StringBuilder.
  • Essential String methods: substring, charAt, indexOf, concat, intern, and isBlank.

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