字串小寫轉大寫

publicclassStringToUpperCaseEmp {//字串小寫轉大寫

publicstaticvoidmain(String[] args) {

String str= "string runoob";

String strUpper= str.toUpperCase();

System.out.println("原始字串："+ str);

System.out.println("轉換為大寫："+ strUpper);

}

}

測試兩個字串區域是否相等

publicclassStringRegionMatch {//測試兩個字串區域是否相等

publicstatic

String first_str= "Welcome to Microsoft";

String second_str= "I work with microsoft";

booleanmatch1= first_str.

regionMatches(11, second_str, 12, 9);

booleanmatch2= first_str.

regionMatches(true, 11, second_str, 12, 9); //第一個引數 true 表示忽略大小寫區別

System.out.println("區分大小寫返回值："+ match1);

System.out.println("不區分大小寫返回值："+ match2);

}

}