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寰堢畝鍗曠殑錛屽啓鐫鐜╃殑錛屾病鎶鏈惈閲?/pre>public static void main(String[] args) { // TODO Auto-generated method stub int abcCount=0;//鑻辨枃瀛楁瘝涓暟 int spaceCount=0;//絀烘牸閿釜鏁? int numCount=0;//鏁板瓧涓暟 int otherCount=0;//鍏朵粬瀛楃涓暟 Scanner scan=new Scanner(System.in); String str=scan.nextLine(); char[] ch = str.toCharArray(); for(int i=0;i<ch.length;i++){ if(Character.isLetter(ch[i])){ //鍒ゆ柇鏄惁瀛楁瘝 abcCount++; } else if(Character.isDigit(ch[i])){ //鍒ゆ柇鏄惁鏁板瓧 numCount++; } else if(Character.isSpaceChar(ch[i])){ //鍒ゆ柇鏄惁絀烘牸閿? spaceCount++; } else{ //浠ヤ笂閮戒笉鏄垯璁や負鏄叾浠栧瓧絎? otherCount++; } } System.out.println("瀛楁瘝涓暟錛?+abcCount); System.out.println("鏁板瓧涓暟錛?+numCount); System.out.println("絀烘牸涓暟錛?+spaceCount); System.out.println("鍏朵粬瀛楃涓暟錛?+otherCount); }
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