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java格式化输出System.out.format()

Java   2008-03-13 23:21:03

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public class Demo {
    public static void main(String args[]){
        /**
            *         -号左对齐，无符号 右对齐，数字，长度，很有用
            */
        System.out.format("%-15s %5s %10s\n", "item","qty","price");
        System.out.format("%-15s %5s %10s\n", "----","---","-----");
        System.out.println("123456789123456789123456789123456789123456789");
        System.out.format("%-15.15s %5d %10.2f\n", "lalala",4,4.25);
    }
}

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