How can we achieve thread safety in java?
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What is meant by class loader? How many types are there?
What are the differences between heap and stack memory in java?
Why java is free from garbage values??
In Inheritance if we are implementing Multi level inheritance and all class having same name of variable and now i want to access each class variable and how it is possible?
What all methods are used to prevent thread execution ?
Map map = new HashMap(2); map.add(“1”,”one”); map.add(“2”,”two”); map.add(“3”,”three”); What will happen at this line?
Does printwriter create a file?
Can we sort array in java?
What is an interface in java?
What does singleton mean in java?
What are the differences between path and classpath variables?
Where is core java used?