Java List to String toString(List col)

Description

to String

License

Apache License

Declaration

public static String toString(List<?> col) 

Method Source Code

//package com.java2s;
/**/*from ww w .  ja v a2s  .  c o m*/
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.List;
import java.util.Map;

public class Main {
    public static String toString(List<?> col) {
        StringBuilder buf = new StringBuilder();
        buf.append("[");
        boolean first = true;
        for (Object o : col) {
            if (first) {
                first = false;
            } else {
                buf.append(", ");
            }
            buf.append(o.toString());
        }
        buf.append("]");
        return buf.toString();
    }

    public static String toString(Map<?, ?> col) {
        StringBuilder buf = new StringBuilder();
        buf.append("[");
        boolean first = true;
        for (Map.Entry<?, ?> o : col.entrySet()) {
            if (first) {
                first = false;
            } else {
                buf.append(", ");
            }
            buf.append(o.getKey().toString()).append(" : ")
                    .append(o.getValue().toString());
        }
        buf.append("]");
        return buf.toString();
    }
}

Related

1. toString(List arguments)
2. toString(List l)
3. toString(List list)
4. toString(List list)
5. toString(List objects)
6. toString(List coll, char delimiter)
7. toString(List list)
8. toString(List list)
9. toString(List list)