day04

public class Demo05 {
    public static void main(String[] args){
    int a = 5;
    int b = 6;
    //字符串连接符 + String
    System.out.println(a+b+"");
    System.out.println(""+a+b);//字符串在前面会拼接
        boolean c = true;
        boolean d = false;
        System.out.println("c&&d:"+(c&&d));

        //三元运算符 ？ ：
        String score = 80<60 ? "bujiege":"jige";//开发中很常见，便于理解
        System.out.println(score);
    }

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