Lambdas provide a clear and concise way to represent one method interface using an expression. Lambdas are usually developed singularly. Lambdas can look very close to earlier Java implementations or completely foreign, as can be seen in the following example. We develop lambdas using more and more terse syntax:

All three lambdas perform the same step (as can be seen in the preceding output). However, the implementation is progressively more non-Java looking.