public static void main(String[] args) { String name = "Bob"; int age = 30; System.out.printf("Name: %s, Age: %d%n", name, age); // 输出:Name: Bob, Age: 30 // %n 是平台无关的换行符 } } 4. 自定义对象的 toString() 方法 在Java 中,所有类都继承自 Object,而 Object 类提...
编写程序Student.java,定义一个类Student,表示“学生”。定义表示年龄和姓名的成员变量age和name。定义有二个参数的构造方法,参数分别是age和name;定义只有一个参数的构造方法,参数是age;定义无参的构造方法。定义打印学生年龄和姓名信息的方法printInfo。定义静态成员变量count,用以存放创建的学生对象的数量,定义静态...
String name = "John"; int age = 25; System.out.println("Name: " + name); System.out.println("Age: " + age); } } 1. 2. 3. 4. 5. 6. 7. 8. 9. In this example, we create aStringvariablenamewith the value “John” and anintvariableagewith the value 25. Then, we useSy...
user_info_dict = {"name": "小王", "age": "18", "gender": "男"} name = user_info_dict["name"] # 直接用key获取value age = user_info_dict.get("age") # 也可以用get(key)获取value user_info_dict["tel"] = "13866663333" # 当key不存在,就是往字典添加键值对,如果存在就是修改valu...
print('My name is', name, 'and I am', age, 'years old.') # 输出:My name is Alice and I am 20 years old. 以上代码使用print()函数输出一个字符串和一个整数,并使用默认的参数将它们组合成一个字符串,输出到标准输出设备中。 另外,我们可以使用sep参数来自定义多个对象之间的分隔符,例如: ...
Most importantly, the values in the table will be dynamic, avoiding hardcoded entries. importjava.util.Formatter;publicclassTablePrinter{publicstaticvoidmain(String[]args){printTable(newString[]{"Name","Age","City"},newString[]{"John Doe","28","New York"},newString[]{"Jane Smith","35"...
数组和print语句/ java 不显示"print('yes')“语句 mysql print命令 mysql的print mysql能用print mysql使用print mysql print函数 Python:使用print语句停止程序 模拟测试try/except with print语句 仅使用print语句进行调试 解包print语句中的参数 Progressbar在print语句之后启动 ...
# Python print() Function Example 3# Print messages and variables together# Variablesname="Anshu Shukla"age=21marks=[80,85,92] perc=85.66# Printingprint("Name:", name)print("Age:", age)print("Marks:", marks)print("Percentage:", perc) ...
# 示例2:带有变量的print()函数使用name ="Alice"age =30print(f"My name is{name}and I am{age}years old.") # 示例3:print()函数中的多行字符串multi_line_string =""" This is a multi-line string. It can span multiple lines in the source code. ...
Before going into implementation, let’s start with how to use theTextTableclass. In this example, we are creating a table of 3 columns ID, NAME and AGE. We can create as many columns as we need. While specifying the column names, we also assign the alignment directions for the column....