What are block lambda expressions in Java?

A lambda block states that lambda expression with multiple statements. It expands the type of operations to perform with a lambda expression. The multiple statements containing bodies are called expression bodies. A lambda expression with expression bodies is called expression lambdas. Whenever we are using expression lambdas, explicitly use a return statement to return a value.

Example

interface NumberFinder {
   int finder(int number1, int number2);
}
public class LambdaNumberFinder {
   public static void main(String args[]) {
      NumberFinder numberFinder = (number1, number2) -> {
         int temp = 0;
         if(number1 > number2) {
            temp = number1;
         } else {
            temp = number2;
         }
         return temp; // explicitly return a value
      };
      System.out.println("The valus is : " + numberFinder.finder(10, 5));
   }
}

Output

The valus is: 10