java语法基础练习题

Java语法基础练习题包括九九乘法表、数组小代码练习、运算符练习和分支结构练习。以下是这些练习题的示例代码：

九九乘法表：

package day05;

public class MultiTable {
    public static void main(String[] args) {
        for(int num=1;num<=9;num++) { //控制行
            for(int i=1;i<=num;i++) { //控制列
                System.out.print(i + "*" + num + "=" + i*num + "\t");
            }
            System.out.println(); //换行
        }
    }
}

数组小代码练习：

int[] array1 = {1, 2, 3, 4, 5};int[] array2 = new int = 6;
array2 = 7;
array2 = 8;

运算符练习：

int a = 5, b = 10, c = 5;
boolean b1 = b > a;
System.out.println(b1); //true
System.out.println(c < b); //true
System.out.println(a >= c); //true
System.out.println(b <= a); //false
System.out.println(b == c); //false
System.out.println(a != c); //false
System.out.println(a > 10); //false
System.out.println(b % 2 == 0); //true
System.out.println(c++ > 5); //false------c自增1变为6
System.out.println(c++ > 5); //true-------c自增1变为7

分支结构练习：

int num = 5;
int flag = num > 0 ? 1 : -1;
System.out.println(flag); //1

int a = 8, b = 5;
int max = a > b ? a : b;
System.out.println("max=" + max);

int number = 10;
if(number % 2 == 0) {
    System.out.println(number + "是偶数");
} else {
    System.out.println(number + "是奇数");
}

double price = 600;
if(price >= 500) {
    double discount = price * 0.8;
    System.out.println("满500打8折，优惠后价格为" + discount);
} else {
    System.out.println("未满500，无优惠");
}

希望以上代码可以帮助到您进行Java语法基础练习。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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