What is the concatenation operator in java?
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What is the difference between the paint() and repaint() methods in java programming?
If a class is declared without any access modifiers, where can the class be accessed?
Why does java have different data types for integers and floating-point values?
what is difference between String buffer and String builder?
In which language JVM (Java Virtual Machine) is implemented
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What is the collections api?
Can java list contain duplicates?
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What do u mean by variable?
What are the two ways you can synchronize a block of code?
Difference between ‘is-a’ and ‘has-a’ relationship in java?