Main.java Source code

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Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

public class Main {
    public static String getOnlyNumerics(String str) {
        if (str == null) {
            return null;
        }
        StringBuilder strBuff = new StringBuilder();
        char c;
        for (int i = 0; i < str.length(); i++) {
            c = str.charAt(i);
            if (Character.isDigit(c)) {
                strBuff.append(c);
            }
        }
        return strBuff.toString();
    }
}