String S1 = “This is only a” + “ simple” + “ test”; StringBuffer Sb = new StringBuilder(“This is only a”).append(“ simple”).append(“ test”); 你会很惊讶的发现,生成 String S1 对象的速度简直太快了,而这个时候 StringBuffer 居然速度上根本一点都不占优势。其实这是 JVM 的一...
public String toString() { return stringBuilder.toString(); } public StringBuilder getStringBuilder() { return stringBuilder; } } you can then use this exactly like the original StringBuilder class: StringBuilderPlus stringBuilder = new StringBuilderPlus(); stringBuilder.appendLine("test") .appendLine(...
StringBuilder delete(int start, int end)removes the characters in a substring of this sequence. publicclassMain {publicstaticvoidmain(String[] args) { StringBuilder lipsum =newStringBuilder("Lorem ipsum dolor sit amet."); System.out.println("lipsum = "+ lipsum.toString());//java2s.comlipsum....
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