文字列とか配列をJavaソースにそのまま使える形式にしてみるメソッドたち

JavaSource.java

package net.flourity.lib;

public class JavaSource
{
    
	public static String toString(int[] a)
	{
		StringBuilder sb = new StringBuilder().append('{');
		int length = a.length;
		for(int i=0;i<length;i++)
		{
			if(i!=0)sb.append(", ");
			sb.append(a[i]);
		}
		return sb.append('}').toString();
	}

	public static String toString(long[] a)
	{
		StringBuilder sb = new StringBuilder().append('{');
		int length = a.length;
		for(int i=0;i<length;i++)
		{
			if(i!=0)sb.append(", ");
			sb.append(a[i]);
		}
		return sb.append('}').toString();
	}

	public static String toString(boolean[] a)
	{
		StringBuilder sb = new StringBuilder().append('{');
		int length = a.length;
		for(int i=0;i<length;i++)
		{
			if(i!=0)sb.append(", ");
			sb.append(a[i]);
		}
		return sb.append('}').toString();
	}

	public static String toString(String[] a)
	{
		StringBuilder sb = new StringBuilder().append('{');
		int length = a.length;
		for(int i=0;i<length;i++)
		{
			if(i!=0)sb.append(", ");
			sb.append(escapeString(a[i]));
		}
		return sb.append('}').toString();
	}


	public static String escapeString(String str)
	{
		StringBuilder sb = new StringBuilder(str.length()+2).append('"');
		for(char ch : str.toCharArray())
		{
			switch(ch)
			{
				case '\\':
					sb.append("\\\\");
					break;
				case '\"':
					sb.append("\\\"");
					break;
				case '\'':
					sb.append("\\\'");
					break;
				case '\b':
					sb.append("\\b");
					break;
				case '\t':
					sb.append("\\t");
					break;
				case '\n':
					sb.append("\\n");
					break;
				case '\r':
					sb.append("\\r");
					break;
				case '\f':
					sb.append("\\f");
					break;
				default:
					sb.append(ch);
			}
		}
		return sb.append('"').toString();
	}
}