What is ternary operator?

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In multi-threading how can we ensure that a resource isn't used by multiple threads simultaneously?

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import java.io.*; class Demo { public static void main(String args[]) { File f=new File("1234.msg"); String arr[]=f.list(); System.out.println(arr.length); } }

3 Answers   IBM, Ramco,

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Explain runtime exceptions?

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What are identifiers in java?

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Explain the use of javap tool.

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When does Exception occurs?

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What does int [] mean in java?

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Why parsing is done?

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Can we start a thread twice in java?

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What is set in java?

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How are this() and super() used with constructors in java programming?

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