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Full 3 Day Java- November 2020

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Across
4
Which Java keyword can you use to address problems of visibility?
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What kind of operation is required to make data flow throw a Java Stream?
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What is the keyword 'super' used to express in Java?
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Given the fully qualfied name of a class as a String, which method of java.lang.Class can be used to load that class into the JVM?
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How many arguments does the Function interface take?
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Which Java construct can you use to create a Singleton?
Down
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What is the return type of the Predicate interface?
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What is the return type of the 'filter' method of a Java Stream?
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Which Java keyword can you use to ensure that a block of code is thread safe?
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What is the return type of the findFirst method of a Stream?
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By what name are interfaces with just one abstract method in Java 8+ referred to?
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Which Java construct is used to create type safe collections?
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What is the return type of BinaryOperator<Integer>?
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Which Java keyword is used to express Covariance?
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What is the default protection level in Java?