再贴个方法: private String str="dsf8asdf8asd8fsadf8asdf8asf"; private int strlen = str.length(); private int count = 0; private int i = 0; for(i=0;i<strlen;i++){ if(str.charAt(i) == '8') count++; } System.out.println("The number of '8' is :"); System.out.println(count);
private String str="dsf8asdf8asd8fsadf8asdf8asf";
private int strlen = str.length();
private int count = 0;
private int i = 0;
for(i=0;i<strlen;i++){
if(str.charAt(i) == '8')
count++;
}
System.out.println("The number of '8' is :");
System.out.println(count);