java pass functions as parameters code example
Example 1: java pass method as parameter
public void setAllComponents(Component[] myComponentArray, Consumer<Component> myMethod) {
for (Component leaf : myComponentArray) {
if (leaf instanceof Container) {
Container node = (Container) leaf;
setAllComponents(node.getComponents(), myMethod);
}
myMethod.accept(leaf);
}
}
Example 2: java pass method as parameter
setAllComponents(this.getComponents(), this::changeColor);
setAllComponents(this.getComponents(), this::changeSize);
Example 3: java pass method as parameter
public interface Function4<A, B, C, D, R> {
R apply(A a, B b, C c, D d);
}