Nd solve explicit runge kutta introduction

Needs["DifferentialEquations`NDSolveProblems`"];
Needs["DifferentialEquations`NDSolveUtilities`"];

NDSolve[{y'[t] == -y[t], y[0] == 1}, y[t], {t, 0, 1},
	Method -> "ExplicitEuler", "StartingStepSize" -> 1 / 10]

{{y[t] -> InterpolatingFunction[{{0., 1.}}, <>][t]}}

NDSolve[{y'[t] == -y[t], y[0] == 1}, y[t], {t, 0, 1},
	Method -> "ExplicitMidpoint", "StartingStepSize" -> 1 / 10]

{{y[t] -> InterpolatingFunction[{{0., 1.}}, <>][t]}}