云南大学软件学院Java实验四.docVIP

云南大学软件学院Java实验四 云南大学软件学院Java实验四 PAGE 云南大学软件学院Java实验四 云南大学软件学院 实 验 报 告 姓名： 王定欢 学号： 188 班级： 日期： 成绩： JAVA实验四 实验目的： Fundamental Programming Structures in Java: Strings 实验要求： Write a program called and do the following:? Create a String object that accepts input from the user.? Referencing the JDK docs, execute 2 different methods on the String.? Print the results of the methods. Write a program called that does the following:? Create a StringBuffer object. Referencing the JDK docs, execute 2 different methods on the StringBuffer. Print the results of the methods. Write a program called that accepts a string, looks for commas within the string, and breaks the string up into the parts separated by the comma.? For example, the string Kunming, Yunnan, China would return three strings: String1 = Kunming String2 = Yunnan String3 = China 实验内容： 1、 = 1 \* GB3 ①代码： package lab4; import class String1 { public static void main(String[] args){ please input a string); Scanner in = new Scanner; String input = (); the input string is:+input); ();ppend(world); String completeString = ();//构建字符串方法 the complete string is:+completeString); StringBuilder insertString = (10,I love java);//将字符插入到字符串中 after insert string is:+insertString); } } = 2 \* GB3 ②、实验结果： 3、 = 1 \* GB3 ①代码： package lab4; import class StringTokenizer1 { public static void main(String[] args){ Scanner in = new Scanner; String inputtest = new String(); please input a string with commas:); inputtest = (); StringTokenizer str = new StringTokenizer(inputtest,,);//用StringTokenizer方法将字符串分段 int j=1; while()){ String+j+=+()); j++; } StringBuilder rs = new StringBuilder();//倒序输出 for(int i = ()-1;i-1;i--){ (i)); } 逆序为：+rs); } } = 2 \* GB3 ②实验结果： 4、附加题： = 1 \* GB3 ①代码：package lab4; import class lab4 { public static void main(String[]args){ String name = new String(My name is lilei); the length of string is:+()); char