How did Johnny, Darry, Dally, and Ponyboy's personality change from the beginning of the novel to the end?

Throughout the novel The Outsiders, the main characters' attitudes and personalities change from the beginning to the end the book. At the beginning of the novel, Johnny is a scared, sympathetic boy who is nervous and viewed as the "gang's pet." By the end of the novel, Johnny is regarded as a hero who courageously entered a burning building to save several children. Darry is the strict, insensitive older brother who does not take Ponyboy's feelings into consideration at the beginning of the novel. At the end of the novel, Darry understands Ponyboy, and displays his love and affection for his brothers instead of remaining callous. At the beginning of the novel, Dally is a criminal, who cares about nothing and nobody. Towards the end of the novel, Pony views Dally as gallant and courageous for helping the boys run away and saving Johnny from the fire. Dally also displays his sympathy and love for Johnny following his accident. Ponyboy is absent minded and naive at the beginning of the novel. He doesn't fully understand why Darry is hard on him and thinks his brother hates him. He also has narrow views regarding the members of the Soc gang and their home lives. By the end of the novel Pony realizes that Darry is a caring brother who only wants what is best for him. He also views the members of the Soc gang as typical individuals that have their own set of problems.