文档介绍：、 ,因此字符串变量是对象。:"空客A787","","oracle"。:String字符串变量列表;例:Strings1;,例:Strings=newString("wearestudents");String类的常用构造方法:(String original)(char[] value)(char[] value,int startIndex,int count)()length()方法可以获取一个字符串的长度。如:Stringtom="我们是学生";//()的值5Stringmyhi="nicetoseeyou.";//()(Strings)比较当前字符串对象的实体是否与参数指定的字符串s的实体相同。如:Stringstr1=newString("wearestudents");Stringstr2=newString("wearestudents");Stringstr3=newString("Wearestudents"); //(str2)的值是?str1==str2的值是? //(str3)的值是?str1==str3的值是?注:str1、(Strings)如:Stringstr1="wearestudents";Stringstr2="wearestudents";Stringstr3="Wearestudents"; //(str2)的值是?str1==str2的值是? //(str3)的值是?str1==str3的值是?守馁垢尼侦棒缺非惋划药渤诛是客劳蕾嘶尔她辜苟牌骄跃攀职伦木汕谦***(Strings)比较当前字符串对象的实体是否与参数指定的字符串s的实体相同,忽略大小写。如:Stringstr1=newString("wearestudents");Stringstr2=newString("wearestudents");Stringstr3=newString("Wearestudents");//(str2)的值是?//(str3)的值是?(Strings) publicbooleanendsWith(Strings)字符串对象调用startsWith(Strings)方法,判断当前字符串对象的前缀是否是参数指定的字符串s。字符串对象调用endsWith(Strings)方法,判断当前字符串的后缀是否是字符串s。如:Stringstr1=newString("wearestudents");Stringstr2=newString("That'sok!");//("we")的值是?//("ok!")的值是? publicbooleanstartsWith(String