Eritrean questions

Eritrean answers

• Replacing the number with the number of spaces
• In Java, how to get positions of ones in reversed binary form of an integer?
• Create an Hour Glass pattern on Java or Python using Simple Code?
• Is there a way to coalesce repeated numbers in a list using streams in Java 8?
• Divide an Array in equal size, such that value of given function is minimum
• Inserting data from arraylist in chunks in excel file using apache poi
• Streaming and filtering a String to get a char[] array
• Comparing two arrayLists from CSV
• Merge list of maps with duplicate keys [duplicate]
• Logical indexing in JAVA