Core Java Questions
Q. What is the purpose of the ‘default’ clause in a switch statement?
View SolutionQ. Which interface must a class implement to use the Comparable sorting?
View SolutionQ. What is the purpose of the ‘assert’ keyword?
View SolutionQ. Which method is used to check if a string contains a substring?
View SolutionQ. Which keyword is used to call a superclass constructor?
View SolutionQ. What is the output of System.out.println(‘Z’ – ‘A’);?
View SolutionQ. What is the output of System.out.println(Math.round(3.7));?
View SolutionQ. What is the purpose of the ‘synchronized’ keyword?
View SolutionQ. Which method is used to remove an element from an ArrayList?
View SolutionQ. What is the time complexity of accessing an element in an ArrayList?
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