java 变量原理、ASCLL 、二进制

十进制转二进制

存储字节

package com.ithema.spedkey;

public class demo02 {
    public static void main(String[] args) {
        int i1 = 0B01100001;
        int i11 = 0b01100001;
        int i2 = 0141;
        int i3 = 0x61;
        int i33 = 0X61;
        // 输出的是默认十进制
        System.out.println(i1);
        System.out.println(i11);
        System.out.println(i2);
        System.out.println(i3);
        System.out.println(i33);
    }
}