During the campaign from Normandy into Germany, Salinger arranged to meet with Ernest Hemingway, a writer who had influenced him and was then working as a war correspondent in Paris. Salinger was impressed with Hemingway's friendliness and modesty, finding him more "soft" than his gruff public persona. Hemingway was impressed by Salinger's writing and remarked: "Jesus, he has a helluva talent." The two writers began corresponding; Salinger wrote to Hemingway in July 1946 explaining that their talks were among his few positive memories of the war. Salinger added that he was working on a play about Holden Caulfield, the protagonist of his story "Slight Rebellion off Madison," and hoped to play the part himself.
After Germany's defeat, Salinger signed up for a six-month period of "Denazification" duty in Germany for the Counterintelligence Corps. He lived in Weißenburg and, soon after, married Sylvia Welter. He brought her to the United States in April 1946, but the marriage fell apart after eight months and Sylvia returned to Germany. In 1972, Salinger's daughter Margaret was with him when he received a letter from Sylvia. He looked at the envelope, and, without reading it, tore it apart. It was the first time he had heard from her since the breakup, but as Margaret put it, "when he was finished with a person, he was through with them."
In 1946, Whit Burnett agreed to help Salinger publish a collection of his short stories through Story Press's Lippincott Imprint. Titled The Young Folks, the collection was to consist of twenty stories—ten, like the title story and "Slight Rebellion off Madison," were already in print; ten were previously unpublished. Though Burnett implied the book would be published and even negotiated Salinger a $1,000 advance on its sale, Lippincott overruled Burnett and rejected the book. Salinger blamed Burnett for the book's failure to see print, and the two became estranged.
In a contributor's note Salinger gave to Harper's Magazine in 1946, he wrote: "I almost always write about very young people," a statement that has been referred to as his credo. Adolescents are featured or appear in all of Salinger's work, from his first published short story, "The Young Folks" (1940), to The Catcher in the Rye and his Glass family stories. In 1961, the critic Alfred Kazin explained that Salinger's choice of teenagers as a subject matter was one reason for his appeal to young readers, but another was "a consciousness [among youths] that he speaks for them and virtually to them, in a language that is peculiarly honest and their own, with a vision of things that capture their most secret judgments of the world." For this reason, Norman Mailer once remarked that Salinger was "the greatest mind ever to stay in prep school." Salinger's language, especially his energetic, realistically sparse dialogue, was revolutionary at the time his first stories were published and was seen by several critics as "the most distinguishing thing" about his work.