package jp.co.jid.exBasic; public class MyString { public void beep(int count) { for (int i = 0; i < count; i++) { System.out.println("ビーーー"); } } public void branch(int func) { switch (func) { case 1: System.out.println("おはようございます"); return; case 2: System.out.println("こんにちは"); return; case 3: System.out.println("こんばんは"); return; case 4: System.out.println("おやすみなさい"); return; case 5: System.out.println("また明日"); return; default: System.out.println("さようなら。。。"); } } public String concat(String[] strArray) { StringBuffer sb = new StringBuffer(); for (String str : strArray) { sb.append(str); } return sb.toString(); } public String replace(String csvString) { return csvString.replace(",", "\t"); } }