// generic methods
public <T> List<T> fromArrayToList(T[] a) { return Arrays.stream(a).collect(Collectors.toList());	}
public static <T, G> List<G> fromArrayToList(T[] a, Function<T, G> mapperFunction) { return Arrays.stream(a) .map(mapperFunction) .collect(Collectors.toList());	}
// bounded generics
public <T extends Number> List<T> fromArrayToList(T[] a) { ...	}
//multiple bounds
<T extends Number & Comparable>
// upper bound wildcards
public static void paintAllBuildings(List<? extends Building> buildings) { ...	}
// lower bound wildcard
<? super T>

public class Tuple <T> { // the T is a placeholder for any datatype public T leftValue; public T rightValue; public Tuple(T leftValue, T rightValue){ // again, T is being used as a placeholder for any type this.leftValue = leftValue; this.rightValue = rightValue;
}
public class Program{ public static void main (String args){ // And upon using Tuples we can fill in the T from the Tuple class with actual datatypes Tuple <int> intTuple = new Tuple <int>(5, 500) Tuple <String> stringTuple = new Tuple <String> ("Hello", "World") // we can even put Tuples inside of Tuples! Tuple<Tuple<int>> metaIntTuple = new Tuple <Tuple <int>> (intTuple, new Tuple <int> (456, 0)); }
}

public <T> List<T> fromArrayToList(T[] a) { return Arrays.stream(a).collect(Collectors.toList());
}

{"tags":[{"tag":"p","content":"Generic Function In Java"},{"tag":"textarea","content":"public class GenericFunction {\n public static void main(String[] args) {\n Integer[] intArray = {1,2,3,4,5,6,7};\n Double[] doubleArray = {1.1,2.2,3.3,4.4,5.0};\n Character[] charArray = {'a' , 'b' , 'c' , 'd' , 'e'};\n System.out.println(\"Integer Array :\");\n genericFunction(intArray);\n System.out.println();\n System.out.println(\"Double Array : \");\n genericFunction(doubleArray);\n System.out.println();\n System.out.println(\"Character Array : \");\n genericFunction(charArray);\n\n }\n\t// Generic Function In Java\n public static <T> void genericFunction(T[] nums){\n for(T element : nums){\n System.out.print(element + \" \");\n }\n }\n}\n","code_language":"java"},{"tag":"p","content":"Any Query contect me @AkashKumar"}]}

public static T GetQueryString<T>(string key, T defaultValue) {...}